OpenSSL 0.9.7 stable 2002 05 08 merge

14 files changed, 484 insertions, 180 deletions

diff --git a/src/lib/libcrypto/doc/DH_set_method.pod b/src/lib/libcrypto/doc/DH_set_method.pod
index 62088eea1b..d990bf8786 100644
--- a/src/lib/libcrypto/doc/DH_set_method.pod
+++ b/src/lib/libcrypto/doc/DH_set_method.pod
@@ -82,8 +82,8 @@ the default engine for Diffie-Hellman opertaions is used.
 
 =head1 RETURN VALUES
 
-DH_OpenSSL() and DH_get_default_method() return pointers to the respective
-DH_METHODs.
+DH_OpenSSL() and DH_get_default_openssl_method() return pointers to the
+respective B<DH_METHOD>s.
 
 DH_set_default_openssl_method() returns no value.
 
diff --git a/src/lib/libcrypto/doc/DSA_set_method.pod b/src/lib/libcrypto/doc/DSA_set_method.pod
index c56dfd0f47..36a1052d27 100644
--- a/src/lib/libcrypto/doc/DSA_set_method.pod
+++ b/src/lib/libcrypto/doc/DSA_set_method.pod
@@ -90,7 +90,7 @@ struct
 =head1 RETURN VALUES
 
 DSA_OpenSSL() and DSA_get_default_openssl_method() return pointers to the
-respective DSA_METHODs.
+respective B<DSA_METHOD>s.
 
 DSA_set_default_openssl_method() returns no value.
 
diff --git a/src/lib/libcrypto/doc/ERR_get_error.pod b/src/lib/libcrypto/doc/ERR_get_error.pod
index 3551bacb8d..9fdedbcb91 100644
--- a/src/lib/libcrypto/doc/ERR_get_error.pod
+++ b/src/lib/libcrypto/doc/ERR_get_error.pod
@@ -2,8 +2,10 @@
 
 =head1 NAME
 
-ERR_get_error, ERR_peek_error, ERR_get_error_line, ERR_peek_error_line,
-ERR_get_error_line_data, ERR_peek_error_line_data - obtain error code and data
+ERR_get_error, ERR_peek_error, ERR_peek_last_error,
+ERR_get_error_line, ERR_peek_error_line, ERR_peek_last_error_line,
+ERR_get_error_line_data, ERR_peek_error_line_data,
+ERR_peek_error_line_data - obtain error code and data
 
 =head1 SYNOPSIS
 
@@ -11,22 +13,29 @@ ERR_get_error_line_data, ERR_peek_error_line_data - obtain error code and data
 
  unsigned long ERR_get_error(void);
  unsigned long ERR_peek_error(void);
+ unsigned long ERR_peek_last_error(void);
 
  unsigned long ERR_get_error_line(const char **file, int *line);
  unsigned long ERR_peek_error_line(const char **file, int *line);
+ unsigned long ERR_peek_last_error_line(const char **file, int *line);
 
  unsigned long ERR_get_error_line_data(const char **file, int *line,
          const char **data, int *flags);
  unsigned long ERR_peek_error_line_data(const char **file, int *line,
          const char **data, int *flags);
+ unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
+         const char **data, int *flags);
 
 =head1 DESCRIPTION
 
-ERR_get_error() returns the last error code from the thread's error
+ERR_get_error() returns the earliest error code from the thread's error
 queue and removes the entry. This function can be called repeatedly
 until there are no more error codes to return.
 
-ERR_peek_error() returns the last error code from the thread's
+ERR_peek_error() returns the earliest error code from the thread's
+error queue without modifying it.
+
+ERR_peek_last_error() returns the latest error code from the thread's
 error queue without modifying it.
 
 See L<ERR_GET_LIB(3)|ERR_GET_LIB(3)> for obtaining information about
@@ -34,12 +43,14 @@ location and reason of the error, and
 L<ERR_error_string(3)|ERR_error_string(3)> for human-readable error
 messages.
 
-ERR_get_error_line() and ERR_peek_error_line() are the same as the
-above, but they additionally store the file name and line number where
+ERR_get_error_line(), ERR_peek_error_line() and
+ERR_peek_last_error_line() are the same as the above, but they
+additionally store the file name and line number where
 the error occurred in *B<file> and *B<line>, unless these are B<NULL>.
 
-ERR_get_error_line_data() and ERR_peek_error_line_data() store
-additional data and flags associated with the error code in *B<data>
+ERR_get_error_line_data(), ERR_peek_error_line_data() and
+ERR_get_last_error_line_data() store additional data and flags
+associated with the error code in *B<data>
 and *B<flags>, unless these are B<NULL>. *B<data> contains a string
 if *B<flags>&B<ERR_TXT_STRING>. If it has been allocated by OPENSSL_malloc(),
 *B<flags>&B<ERR_TXT_MALLOCED> is true.
@@ -59,5 +70,7 @@ ERR_get_error(), ERR_peek_error(), ERR_get_error_line() and
 ERR_peek_error_line() are available in all versions of SSLeay and
 OpenSSL. ERR_get_error_line_data() and ERR_peek_error_line_data()
 were added in SSLeay 0.9.0.
+ERR_peek_last_error(), ERR_peek_last_error_line() and
+ERR_peek_last_error_line_data() were added in OpenSSL 0.9.7.
 
 =cut
diff --git a/src/lib/libcrypto/doc/EVP_BytesToKey.pod b/src/lib/libcrypto/doc/EVP_BytesToKey.pod
new file mode 100644
index 0000000000..5ce4add082
--- /dev/null
+++ b/src/lib/libcrypto/doc/EVP_BytesToKey.pod
@@ -0,0 +1,67 @@
+=pod
+
+=head1 NAME
+
+ EVP_BytesToKey - password based encryption routine
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ int EVP_BytesToKey(const EVP_CIPHER *type,const EVP_MD *md,
+                       const unsigned char *salt,
+                       const unsigned char *data, int datal, int count,
+                       unsigned char *key,unsigned char *iv);
+
+=head1 DESCRIPTION
+
+EVP_BytesToKey() derives a key and IV from various parameters. B<type> is
+the cipher to derive the key and IV for. B<md> is the message digest to use.
+The B<salt> paramter is used as a salt in the derivation: it should point to
+an 8 byte buffer or NULL if no salt is used. B<data> is a buffer containing
+B<datal> bytes which is used to derive the keying data. B<count> is the
+iteration count to use. The derived key and IV will be written to B<key>
+and B<iv> respectively.
+
+=head1 NOTES
+
+A typical application of this function is to derive keying material for an
+encryption algorithm from a password in the B<data> parameter.
+
+Increasing the B<count> parameter slows down the algorithm which makes it
+harder for an attacker to peform a brute force attack using a large number
+of candidate passwords.
+
+If the total key and IV length is less than the digest length and
+B<MD5> is used then the derivation algorithm is compatible with PKCS#5 v1.5
+otherwise a non standard extension is used to derive the extra data.
+
+Newer applications should use more standard algorithms such as PKCS#5
+v2.0 for key derivation.
+
+=head1 KEY DERIVATION ALGORITHM
+
+The key and IV is derived by concatenating D_1, D_2, etc until
+enough data is available for the key and IV. D_i is defined as:
+
+        D_i = HASH^count(D_(i-1) || data || salt)
+
+where || denotes concatentaion, D_0 is empty, HASH is the digest
+algorithm in use, HASH^1(data) is simply HASH(data), HASH^2(data)
+is HASH(HASH(data)) and so on.
+
+The initial bytes are used for the key and the subsequent bytes for
+the IV.
+
+=head1 RETURN VALUES
+
+EVP_BytesToKey() returns the size of the derived key in bytes.
+
+=head1 SEE ALSO
+
+L<evp(3)|evp(3)>, L<rand(3)|rand(3)>,
+L<EVP_EncryptInit(3)|EVP_EncryptInit(3)>,
+
+=head1 HISTORY
+
+=cut
diff --git a/src/lib/libcrypto/doc/EVP_DigestInit.pod b/src/lib/libcrypto/doc/EVP_DigestInit.pod
index fefc858f7e..acd4d0167a 100644
--- a/src/lib/libcrypto/doc/EVP_DigestInit.pod
+++ b/src/lib/libcrypto/doc/EVP_DigestInit.pod
@@ -2,9 +2,10 @@
 
 =head1 NAME
 
-EVP_DigestInit, EVP_DigestUpdate, EVP_DigestFinal, EVP_MAX_MD_SIZE,
-EVP_MD_CTX_copy, EVP_MD_type, EVP_MD_pkey_type, EVP_MD_size, EVP_MD_block_size,
-EVP_MD_CTX_md, EVP_MD_CTX_size, EVP_MD_CTX_block_size, EVP_MD_CTX_type,
+EVP_MD_CTX_init, EVP_MD_CTX_create, EVP_DigestInit_ex, EVP_DigestUpdate,
+EVP_DigestFinal_ex, EVP_MD_CTX_cleanup, EVP_MD_CTX_destroy, EVP_MAX_MD_SIZE,
+EVP_MD_CTX_copy_ex EVP_MD_CTX_copy, EVP_MD_type, EVP_MD_pkey_type, EVP_MD_size,
+EVP_MD_block_size, EVP_MD_CTX_md, EVP_MD_CTX_size, EVP_MD_CTX_block_size, EVP_MD_CTX_type,
 EVP_md_null, EVP_md2, EVP_md5, EVP_sha, EVP_sha1, EVP_dss, EVP_dss1, EVP_mdc2,
 EVP_ripemd160, EVP_get_digestbyname, EVP_get_digestbynid, EVP_get_digestbyobj -
 EVP digest routines
@@ -13,15 +14,28 @@ EVP digest routines
 
  #include <openssl/evp.h>
 
- void EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);
- void EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt);
- void EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md,
+ void EVP_MD_CTX_init(EVP_MD_CTX *ctx);
+ EVP_MD_CTX *EVP_MD_CTX_create(void);
+
+ int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl);
+ int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt);
+ int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md,
         unsigned int *s);
 
- #define EVP_MAX_MD_SIZE (16+20) /* The SSLv3 md5+sha1 type */
+ int EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx);
+ void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx);
+
+ int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out,const EVP_MD_CTX *in);  
+
+ int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);
+ int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md,
+        unsigned int *s);
 
  int EVP_MD_CTX_copy(EVP_MD_CTX *out,EVP_MD_CTX *in);  
 
+ #define EVP_MAX_MD_SIZE (16+20) /* The SSLv3 md5+sha1 type */
+
+
  #define EVP_MD_type(e)                 ((e)->type)
  #define EVP_MD_pkey_type(e)            ((e)->pkey_type)
  #define EVP_MD_size(e)                 ((e)->md_size)
@@ -32,15 +46,15 @@ EVP digest routines
  #define EVP_MD_CTX_block_size(e)       EVP_MD_block_size((e)->digest)
  #define EVP_MD_CTX_type(e)             EVP_MD_type((e)->digest)
 
- EVP_MD *EVP_md_null(void);
- EVP_MD *EVP_md2(void);
- EVP_MD *EVP_md5(void);
- EVP_MD *EVP_sha(void);
- EVP_MD *EVP_sha1(void);
- EVP_MD *EVP_dss(void);
- EVP_MD *EVP_dss1(void);
- EVP_MD *EVP_mdc2(void);
- EVP_MD *EVP_ripemd160(void);
+ const EVP_MD *EVP_md_null(void);
+ const EVP_MD *EVP_md2(void);
+ const EVP_MD *EVP_md5(void);
+ const EVP_MD *EVP_sha(void);
+ const EVP_MD *EVP_sha1(void);
+ const EVP_MD *EVP_dss(void);
+ const EVP_MD *EVP_dss1(void);
+ const EVP_MD *EVP_mdc2(void);
+ const EVP_MD *EVP_ripemd160(void);
 
  const EVP_MD *EVP_get_digestbyname(const char *name);
  #define EVP_get_digestbynid(a) EVP_get_digestbyname(OBJ_nid2sn(a))
@@ -50,25 +64,48 @@ EVP digest routines
 
 The EVP digest routines are a high level interface to message digests.
 
-EVP_DigestInit() initializes a digest context B<ctx> to use a digest
-B<type>: this will typically be supplied by a function such as
-EVP_sha1().
+EVP_MD_CTX_init() initializes digest contet B<ctx>.
+
+EVP_MD_CTX_create() allocates, initializes and returns a digest contet.
+
+EVP_DigestInit_ex() sets up digest context B<ctx> to use a digest
+B<type> from ENGINE B<impl>. B<ctx> must be initialized before calling this
+function. B<type> will typically be supplied by a functionsuch as EVP_sha1().
+If B<impl> is NULL then the default implementation of digest B<type> is used.
 
 EVP_DigestUpdate() hashes B<cnt> bytes of data at B<d> into the
 digest context B<ctx>. This function can be called several times on the
 same B<ctx> to hash additional data.
 
-EVP_DigestFinal() retrieves the digest value from B<ctx> and places
+EVP_DigestFinal_ex() retrieves the digest value from B<ctx> and places
 it in B<md>. If the B<s> parameter is not NULL then the number of
 bytes of data written (i.e. the length of the digest) will be written
 to the integer at B<s>, at most B<EVP_MAX_MD_SIZE> bytes will be written.
-After calling EVP_DigestFinal() no additional calls to EVP_DigestUpdate()
-can be made, but EVP_DigestInit() can be called to initialize a new
+After calling EVP_DigestFinal_ex() no additional calls to EVP_DigestUpdate()
+can be made, but EVP_DigestInit_ex() can be called to initialize a new
 digest operation.
 
-EVP_MD_CTX_copy() can be used to copy the message digest state from
+EVP_MD_CTX_cleanup() cleans up digest context B<ctx>, it should be called
+after a digest context is no longer needed.
+
+EVP_MD_CTX_destroy() cleans up digest context B<ctx> and frees up the
+space allocated to it, it should be called only on a context created
+using EVP_MD_CTX_create().
+
+EVP_MD_CTX_copy_ex() can be used to copy the message digest state from
 B<in> to B<out>. This is useful if large amounts of data are to be
-hashed which only differ in the last few bytes.
+hashed which only differ in the last few bytes. B<out> must be initialized
+before calling this function.
+
+EVP_DigestInit() behaves in the same way as EVP_DigestInit_ex() except
+the passed context B<ctx> does not have to be initialized, and it always
+uses the default digest implementation.
+
+EVP_DigestFinal() is similar to EVP_DigestFinal_ex() except the digest
+contet B<ctx> is automatically cleaned up.
+
+EVP_MD_CTX_copy() is similar to EVP_MD_CTX_copy_ex() except the destination
+B<out> does not have to be initialized.
 
 EVP_MD_size() and EVP_MD_CTX_size() return the size of the message digest
 when passed an B<EVP_MD> or an B<EVP_MD_CTX> structure, i.e. the size of the
@@ -107,9 +144,10 @@ using, for example, OpenSSL_add_all_digests() for these functions to work.
 
 =head1 RETURN VALUES
 
-EVP_DigestInit(), EVP_DigestUpdate() and EVP_DigestFinal() do not return values.
+EVP_DigestInit_ex(), EVP_DigestUpdate() and EVP_DigestFinal_ex() return 1 for
+success and 0 for failure.
 
-EVP_MD_CTX_copy() returns 1 if successful or 0 for failure.
+EVP_MD_CTX_copy_ex() returns 1 if successful or 0 for failure.
 
 EVP_MD_type(), EVP_MD_pkey_type() and EVP_MD_type() return the NID of the
 corresponding OBJECT IDENTIFIER or NID_undef if none exists.
@@ -134,6 +172,19 @@ transparent to the digest used and much more flexible.
 SHA1 is the digest of choice for new applications. The other digest algorithms
 are still in common use.
 
+For most applications the B<impl> parameter to EVP_DigestInit_ex() will be
+set to NULL to use the default digest implementation.
+
+The functions EVP_DigestInit(), EVP_DigestFinal() and EVP_MD_CTX_copy() are 
+obsolete but are retained to maintain compatibility with existing code. New
+applications should use EVP_DigestInit_ex(), EVP_DigestFinal_ex() and 
+EVP_MD_CTX_copy_ex() because they can efficiently reuse a digest context
+instead of initializing and cleaning it up on each call and allow non default
+implementations of digests to be specified.
+
+In OpenSSL 0.9.7 and later if digest contexts are not cleaned up after use
+memory leaks will occur. 
+
 =head1 EXAMPLE
 
 This example digests the data "Test Message\n" and "Hello World\n", using the
@@ -165,10 +216,12 @@ digest name passed on the command line.
         exit(1);
  }
 
- EVP_DigestInit(&mdctx, md);
+ EVP_MD_CTX_init(&mdctx);
+ EVP_DigestInit_ex(&mdctx, md, NULL);
  EVP_DigestUpdate(&mdctx, mess1, strlen(mess1));
  EVP_DigestUpdate(&mdctx, mess2, strlen(mess2));
- EVP_DigestFinal(&mdctx, md_value, &md_len);
+ EVP_DigestFinal_ex(&mdctx, md_value, &md_len);
+ EVP_MD_CTX_cleanup(&mdctx);
 
  printf("Digest is: ");
  for(i = 0; i < md_len; i++) printf("%02x", md_value[i]);
@@ -177,17 +230,10 @@ digest name passed on the command line.
 
 =head1 BUGS
 
-Several of the functions do not return values: maybe they should. Although the
-internal digest operations will never fail some future hardware based operations
-might.
-
 The link between digests and signing algorithms results in a situation where
 EVP_sha1() must be used with RSA and EVP_dss1() must be used with DSS
 even though they are identical digests.
 
-The size of an B<EVP_MD_CTX> structure is determined at compile time: this results
-in code that must be recompiled if the size of B<EVP_MD_CTX> increases.
-
 =head1 SEE ALSO
 
 L<evp(3)|evp(3)>, L<HMAC(3)|HMAC(3)>, L<MD2(3)|MD2(3)>,
@@ -199,4 +245,7 @@ L<SHA1(3)|SHA1(3)>
 EVP_DigestInit(), EVP_DigestUpdate() and EVP_DigestFinal() are
 available in all versions of SSLeay and OpenSSL.
 
+EVP_DigestInit_ex(), EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex()
+were added in OpenSSL 0.9.7.
+
 =cut
diff --git a/src/lib/libcrypto/doc/EVP_EncryptInit.pod b/src/lib/libcrypto/doc/EVP_EncryptInit.pod
index 9afe2396e2..371b6a2287 100644
--- a/src/lib/libcrypto/doc/EVP_EncryptInit.pod
+++ b/src/lib/libcrypto/doc/EVP_EncryptInit.pod
@@ -2,43 +2,65 @@
 
 =head1 NAME
 
-EVP_EncryptInit, EVP_EncryptUpdate, EVP_EncryptFinal, EVP_DecryptInit,
-EVP_DecryptUpdate, EVP_DecryptFinal, EVP_CipherInit, EVP_CipherUpdate,
-EVP_CipherFinal, EVP_CIPHER_CTX_set_key_length, EVP_CIPHER_CTX_ctrl,
-EVP_CIPHER_CTX_cleanup, EVP_get_cipherbyname, EVP_get_cipherbynid,
-EVP_get_cipherbyobj, EVP_CIPHER_nid, EVP_CIPHER_block_size,
-EVP_CIPHER_key_length, EVP_CIPHER_iv_length, EVP_CIPHER_flags,
-EVP_CIPHER_mode, EVP_CIPHER_type, EVP_CIPHER_CTX_cipher, EVP_CIPHER_CTX_nid,
-EVP_CIPHER_CTX_block_size, EVP_CIPHER_CTX_key_length, EVP_CIPHER_CTX_iv_length,
-EVP_CIPHER_CTX_get_app_data, EVP_CIPHER_CTX_set_app_data, EVP_CIPHER_CTX_type,
-EVP_CIPHER_CTX_flags, EVP_CIPHER_CTX_mode, EVP_CIPHER_param_to_asn1,
-EVP_CIPHER_asn1_to_param - EVP cipher routines
+EVP_CIPHER_CTX_init, EVP_EncryptInit_ex, EVP_EncryptUpdate,
+EVP_EncryptFinal_ex, EVP_DecryptInit_ex, EVP_DecryptUpdate,
+EVP_DecryptFinal_ex, EVP_CipherInit_ex, EVP_CipherUpdate,
+EVP_CipherFinal_ex, EVP_CIPHER_CTX_set_key_length,
+EVP_CIPHER_CTX_ctrl, EVP_CIPHER_CTX_cleanup, EVP_EncryptInit,
+EVP_EncryptFinal, EVP_DecryptInit, EVP_DecryptFinal,
+EVP_CipherInit, EVP_CipherFinal, EVP_get_cipherbyname,
+EVP_get_cipherbynid, EVP_get_cipherbyobj, EVP_CIPHER_nid,
+EVP_CIPHER_block_size, EVP_CIPHER_key_length, EVP_CIPHER_iv_length,
+EVP_CIPHER_flags, EVP_CIPHER_mode, EVP_CIPHER_type, EVP_CIPHER_CTX_cipher,
+EVP_CIPHER_CTX_nid, EVP_CIPHER_CTX_block_size, EVP_CIPHER_CTX_key_length,
+EVP_CIPHER_CTX_iv_length, EVP_CIPHER_CTX_get_app_data,
+EVP_CIPHER_CTX_set_app_data, EVP_CIPHER_CTX_type, EVP_CIPHER_CTX_flags,
+EVP_CIPHER_CTX_mode, EVP_CIPHER_param_to_asn1, EVP_CIPHER_asn1_to_param,
+EVP_CIPHER_CTX_set_padding - EVP cipher routines
 
 =head1 SYNOPSIS
 
  #include <openssl/evp.h>
 
- int EVP_EncryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
-         unsigned char *key, unsigned char *iv);
+ int EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a);
+
+ int EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
+         ENGINE *impl, unsigned char *key, unsigned char *iv);
  int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
          int *outl, unsigned char *in, int inl);
+ int EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out,
+         int *outl);
+
+ int EVP_DecryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
+         ENGINE *impl, unsigned char *key, unsigned char *iv);
+ int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
+         int *outl, unsigned char *in, int inl);
+ int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm,
+         int *outl);
+
+ int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
+         ENGINE *impl, unsigned char *key, unsigned char *iv, int enc);
+ int EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
+         int *outl, unsigned char *in, int inl);
+ int EVP_CipherFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm,
+         int *outl);
+
+ int EVP_EncryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
+         unsigned char *key, unsigned char *iv);
  int EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out,
          int *outl);
 
  int EVP_DecryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
          unsigned char *key, unsigned char *iv);
- int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
-         int *outl, unsigned char *in, int inl);
  int EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm,
          int *outl);
 
  int EVP_CipherInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
          unsigned char *key, unsigned char *iv, int enc);
- int EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
-         int *outl, unsigned char *in, int inl);
  int EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm,
          int *outl);
 
+ int EVP_CIPHER_CTX_set_padding(EVP_CIPHER_CTX *x, int padding);
  int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *x, int keylen);
  int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr);
  int EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a);
@@ -74,14 +96,19 @@ EVP_CIPHER_asn1_to_param - EVP cipher routines
 The EVP cipher routines are a high level interface to certain
 symmetric ciphers.
 
-EVP_EncryptInit() initializes a cipher context B<ctx> for encryption
-with cipher B<type>. B<type> is normally supplied by a function such
-as EVP_des_cbc() . B<key> is the symmetric key to use and B<iv> is the
-IV to use (if necessary), the actual number of bytes used for the
-key and IV depends on the cipher. It is possible to set all parameters
-to NULL except B<type> in an initial call and supply the remaining
-parameters in subsequent calls, all of which have B<type> set to NULL.
-This is done when the default cipher parameters are not appropriate.
+EVP_CIPHER_CTX_init() initializes cipher contex B<ctx>.
+
+EVP_EncryptInit_ex() sets up cipher context B<ctx> for encryption
+with cipher B<type> from ENGINE B<impl>. B<ctx> must be initialized
+before calling this function. B<type> is normally supplied
+by a function such as EVP_des_cbc(). If B<impl> is NULL then the
+default implementation is used. B<key> is the symmetric key to use
+and B<iv> is the IV to use (if necessary), the actual number of bytes
+used for the key and IV depends on the cipher. It is possible to set
+all parameters to NULL except B<type> in an initial call and supply
+the remaining parameters in subsequent calls, all of which have B<type>
+set to NULL. This is done when the default cipher parameters are not
+appropriate.
 
 EVP_EncryptUpdate() encrypts B<inl> bytes from the buffer B<in> and
 writes the encrypted version to B<out>. This function can be called
@@ -89,32 +116,49 @@ multiple times to encrypt successive blocks of data. The amount
 of data written depends on the block alignment of the encrypted data:
 as a result the amount of data written may be anything from zero bytes
 to (inl + cipher_block_size - 1) so B<outl> should contain sufficient
-room.  The actual number of bytes written is placed in B<outl>.
+room. The actual number of bytes written is placed in B<outl>.
+
+If padding is enabled (the default) then EVP_EncryptFinal_ex() encrypts
+the "final" data, that is any data that remains in a partial block.
+It uses L<standard block padding|/NOTES> (aka PKCS padding). The encrypted
+final data is written to B<out> which should have sufficient space for
+one cipher block. The number of bytes written is placed in B<outl>. After
+this function is called the encryption operation is finished and no further
+calls to EVP_EncryptUpdate() should be made.
 
-EVP_EncryptFinal() encrypts the "final" data, that is any data that
-remains in a partial block. It uses L<standard block padding|/NOTES> (aka PKCS
-padding). The encrypted final data is written to B<out> which should
-have sufficient space for one cipher block. The number of bytes written
-is placed in B<outl>. After this function is called the encryption operation
-is finished and no further calls to EVP_EncryptUpdate() should be made.
+If padding is disabled then EVP_EncryptFinal_ex() will not encrypt any more
+data and it will return an error if any data remains in a partial block:
+that is if the total data length is not a multiple of the block size. 
 
-EVP_DecryptInit(), EVP_DecryptUpdate() and EVP_DecryptFinal() are the
+EVP_DecryptInit_ex(), EVP_DecryptUpdate() and EVP_DecryptFinal_ex() are the
 corresponding decryption operations. EVP_DecryptFinal() will return an
-error code if the final block is not correctly formatted. The parameters
-and restrictions are identical to the encryption operations except that
-the decrypted data buffer B<out> passed to EVP_DecryptUpdate() should
-have sufficient room for (B<inl> + cipher_block_size) bytes unless the
-cipher block size is 1 in which case B<inl> bytes is sufficient.
-
-EVP_CipherInit(), EVP_CipherUpdate() and EVP_CipherFinal() are functions
-that can be used for decryption or encryption. The operation performed
-depends on the value of the B<enc> parameter. It should be set to 1 for
-encryption, 0 for decryption and -1 to leave the value unchanged (the
-actual value of 'enc' being supplied in a previous call).
-
-EVP_CIPHER_CTX_cleanup() clears all information from a cipher context.
-It should be called after all operations using a cipher are complete
-so sensitive information does not remain in memory.
+error code if padding is enabled and the final block is not correctly
+formatted. The parameters and restrictions are identical to the encryption
+operations except that if padding is enabled the decrypted data buffer B<out>
+passed to EVP_DecryptUpdate() should have sufficient room for
+(B<inl> + cipher_block_size) bytes unless the cipher block size is 1 in
+which case B<inl> bytes is sufficient.
+
+EVP_CipherInit_ex(), EVP_CipherUpdate() and EVP_CipherFinal_ex() are
+functions that can be used for decryption or encryption. The operation
+performed depends on the value of the B<enc> parameter. It should be set
+to 1 for encryption, 0 for decryption and -1 to leave the value unchanged
+(the actual value of 'enc' being supplied in a previous call).
+
+EVP_CIPHER_CTX_cleanup() clears all information from a cipher context
+and free up any allocated memory associate with it. It should be called
+after all operations using a cipher are complete so sensitive information
+does not remain in memory.
+
+EVP_EncryptInit(), EVP_DecryptInit() and EVP_CipherInit() behave in a
+similar way to EVP_EncryptInit_ex(), EVP_DecryptInit_ex and
+EVP_CipherInit_ex() except the B<ctx> paramter does not need to be
+initialized and they always use the default cipher implementation.
+
+EVP_EncryptFinal(), EVP_DecryptFinal() and EVP_CipherFinal() behave in a
+similar way to EVP_EncryptFinal_ex(), EVP_DecryptFinal_ex() and
+EVP_CipherFinal_ex() except B<ctx> is automatically cleaned up 
+after the call.
 
 EVP_get_cipherbyname(), EVP_get_cipherbynid() and EVP_get_cipherbyobj()
 return an EVP_CIPHER structure when passed a cipher name, a NID or an
@@ -125,6 +169,13 @@ passed an B<EVP_CIPHER> or B<EVP_CIPHER_CTX> structure.  The actual NID
 value is an internal value which may not have a corresponding OBJECT
 IDENTIFIER.
 
+EVP_CIPHER_CTX_set_padding() enables or disables padding. By default
+encryption operations are padded using standard block padding and the
+padding is checked and removed when decrypting. If the B<pad> parameter
+is zero then no padding is performed, the total amount of data encrypted
+or decrypted must then be a multiple of the block size or an error will
+occur.
+
 EVP_CIPHER_key_length() and EVP_CIPHER_CTX_key_length() return the key
 length of a cipher when passed an B<EVP_CIPHER> or B<EVP_CIPHER_CTX>
 structure. The constant B<EVP_MAX_KEY_LENGTH> is the maximum key length
@@ -185,14 +236,14 @@ RC5 can be set.
 
 =head1 RETURN VALUES
 
-EVP_EncryptInit(), EVP_EncryptUpdate() and EVP_EncryptFinal() return 1 for success
-and 0 for failure.
+EVP_CIPHER_CTX_init, EVP_EncryptInit_ex(), EVP_EncryptUpdate() and
+EVP_EncryptFinal_ex() return 1 for success and 0 for failure.
 
-EVP_DecryptInit() and EVP_DecryptUpdate() return 1 for success and 0 for failure.
-EVP_DecryptFinal() returns 0 if the decrypt failed or 1 for success.
+EVP_DecryptInit_ex() and EVP_DecryptUpdate() return 1 for success and 0 for failure.
+EVP_DecryptFinal_ex() returns 0 if the decrypt failed or 1 for success.
 
-EVP_CipherInit() and EVP_CipherUpdate() return 1 for success and 0 for failure.
-EVP_CipherFinal() returns 1 for a decryption failure or 1 for success.
+EVP_CipherInit_ex() and EVP_CipherUpdate() return 1 for success and 0 for failure.
+EVP_CipherFinal_ex() returns 0 for a decryption failure or 1 for success.
 
 EVP_CIPHER_CTX_cleanup() returns 1 for success and 0 for failure.
 
@@ -207,6 +258,8 @@ size.
 EVP_CIPHER_key_length() and EVP_CIPHER_CTX_key_length() return the key
 length.
 
+EVP_CIPHER_CTX_set_padding() always returns 1.
+
 EVP_CIPHER_iv_length() and EVP_CIPHER_CTX_iv_length() return the IV
 length or zero if the cipher does not use an IV.
 
@@ -301,25 +354,26 @@ encrypted then 5 padding bytes of value 5 will be added.
 
 When decrypting the final block is checked to see if it has the correct form.
 
-Although the decryption operation can produce an error, it is not a strong
-test that the input data or key is correct. A random block has better than
-1 in 256 chance of being of the correct format and problems with the
-input data earlier on will not produce a final decrypt error.
+Although the decryption operation can produce an error if padding is enabled,
+it is not a strong test that the input data or key is correct. A random block
+has better than 1 in 256 chance of being of the correct format and problems with
+the input data earlier on will not produce a final decrypt error.
 
-The functions EVP_EncryptInit(), EVP_EncryptUpdate(), EVP_EncryptFinal(),
-EVP_DecryptInit(), EVP_DecryptUpdate(), EVP_CipherInit() and EVP_CipherUpdate()
-and EVP_CIPHER_CTX_cleanup() did not return errors in OpenSSL version 0.9.5a or
-earlier. Software only versions of encryption algorithms will never return
-error codes for these functions, unless there is a programming error (for example
-and attempt to set the key before the cipher is set in EVP_EncryptInit() ).
+If padding is disabled then the decryption operation will always succeed if
+the total amount of data decrypted is a multiple of the block size.
+
+The functions EVP_EncryptInit(), EVP_EncryptFinal(), EVP_DecryptInit(),
+EVP_CipherInit() and EVP_CipherFinal() are obsolete but are retained for
+compatibility with existing code. New code should use EVP_EncryptInit_ex(),
+EVP_EncryptFinal_ex(), EVP_DecryptInit_ex(), EVP_DecryptFinal_ex(),
+EVP_CipherInit_ex() and EVP_CipherFinal_ex() because they can reuse an
+existing context without allocating and freeing it up on each call.
 
 =head1 BUGS
 
 For RC5 the number of rounds can currently only be set to 8, 12 or 16. This is
 a limitation of the current RC5 code rather than the EVP interface.
 
-It should be possible to disable PKCS padding: currently it isn't.
-
 EVP_MAX_KEY_LENGTH and EVP_MAX_IV_LENGTH only refer to the internal ciphers with
 default key lengths. If custom ciphers exceed these values the results are
 unpredictable. This is because it has become standard practice to define a 
@@ -333,22 +387,113 @@ for certain common S/MIME ciphers (RC2, DES, triple DES) in CBC mode.
 Get the number of rounds used in RC5:
 
  int nrounds;
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GET_RC5_ROUNDS, 0, &i);
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GET_RC5_ROUNDS, 0, &nrounds);
 
 Get the RC2 effective key length:
 
  int key_bits;
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GET_RC2_KEY_BITS, 0, &i);
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GET_RC2_KEY_BITS, 0, &key_bits);
 
 Set the number of rounds used in RC5:
 
  int nrounds;
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_SET_RC5_ROUNDS, i, NULL);
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_SET_RC5_ROUNDS, nrounds, NULL);
 
-Set the number of rounds used in RC2:
+Set the effective key length used in RC2:
+
+ int key_bits;
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_SET_RC2_KEY_BITS, key_bits, NULL);
+
+Encrypt a string using blowfish:
+
+ int do_crypt(char *outfile)
+        {
+        unsigned char outbuf[1024];
+        int outlen, tmplen;
+        /* Bogus key and IV: we'd normally set these from
+         * another source.
+         */
+        unsigned char key[] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
+        unsigned char iv[] = {1,2,3,4,5,6,7,8};
+        char intext[] = "Some Crypto Text";
+        EVP_CIPHER_CTX ctx;
+        FILE *out;
+        EVP_CIPHER_CTX_init(&ctx);
+        EVP_EncryptInit_ex(&ctx, NULL, EVP_bf_cbc(), key, iv);
+
+        if(!EVP_EncryptUpdate(&ctx, outbuf, &outlen, intext, strlen(intext)))
+                {
+                /* Error */
+                return 0;
+                }
+        /* Buffer passed to EVP_EncryptFinal() must be after data just
+         * encrypted to avoid overwriting it.
+         */
+        if(!EVP_EncryptFinal_ex(&ctx, outbuf + outlen, &tmplen))
+                {
+                /* Error */
+                return 0;
+                }
+        outlen += tmplen;
+        EVP_CIPHER_CTX_cleanup(&ctx);
+        /* Need binary mode for fopen because encrypted data is
+         * binary data. Also cannot use strlen() on it because
+         * it wont be null terminated and may contain embedded
+         * nulls.
+         */
+        out = fopen(outfile, "wb");
+        fwrite(outbuf, 1, outlen, out);
+        fclose(out);
+        return 1;
+        }
+
+The ciphertext from the above example can be decrypted using the B<openssl>
+utility with the command line:
+ 
+ S<openssl bf -in cipher.bin -K 000102030405060708090A0B0C0D0E0F -iv 0102030405060708 -d>
+
+General encryption, decryption function example using FILE I/O and RC2 with an
+80 bit key:
+
+ int do_crypt(FILE *in, FILE *out, int do_encrypt)
+        {
+        /* Allow enough space in output buffer for additional block */
+        inbuf[1024], outbuf[1024 + EVP_MAX_BLOCK_LENGTH];
+        int inlen, outlen;
+        /* Bogus key and IV: we'd normally set these from
+         * another source.
+         */
+        unsigned char key[] = "0123456789";
+        unsigned char iv[] = "12345678";
+        /* Don't set key or IV because we will modify the parameters */
+        EVP_CIPHER_CTX_init(&ctx);
+        EVP_CipherInit_ex(&ctx, EVP_rc2(), NULL, NULL, NULL, do_encrypt);
+        EVP_CIPHER_CTX_set_key_length(&ctx, 10);
+        /* We finished modifying parameters so now we can set key and IV */
+        EVP_CipherInit_ex(&ctx, NULL, NULL, key, iv, do_encrypt);
+
+        for(;;) 
+                {
+                inlen = fread(inbuf, 1, 1024, in);
+                if(inlen <= 0) break;
+                if(!EVP_CipherUpdate(&ctx, outbuf, &outlen, inbuf, inlen))
+                        {
+                        /* Error */
+                        return 0;
+                        }
+                fwrite(outbuf, 1, outlen, out);
+                }
+        if(!EVP_CipherFinal_ex(&ctx, outbuf, &outlen))
+                {
+                /* Error */
+                return 0;
+                }
+        fwrite(outbuf, 1, outlen, out);
+
+        EVP_CIPHER_CTX_cleanup(&ctx);
+        return 1;
+        }
 
- int nrounds;
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_SET_RC2_KEY_BITS, i, NULL);
 
 =head1 SEE ALSO
 
diff --git a/src/lib/libcrypto/doc/EVP_SignInit.pod b/src/lib/libcrypto/doc/EVP_SignInit.pod
index d5ce245ecd..b1ac129430 100644
--- a/src/lib/libcrypto/doc/EVP_SignInit.pod
+++ b/src/lib/libcrypto/doc/EVP_SignInit.pod
@@ -8,10 +8,12 @@ EVP_SignInit, EVP_SignUpdate, EVP_SignFinal - EVP signing functions
 
  #include <openssl/evp.h>
 
- void EVP_SignInit(EVP_MD_CTX *ctx, const EVP_MD *type);
- void EVP_SignUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt);
+ int EVP_SignInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl);
+ int EVP_SignUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt);
  int EVP_SignFinal(EVP_MD_CTX *ctx,unsigned char *sig,unsigned int *s, EVP_PKEY *pkey);
 
+ void EVP_SignInit(EVP_MD_CTX *ctx, const EVP_MD *type);
+
  int EVP_PKEY_size(EVP_PKEY *pkey);
 
 =head1 DESCRIPTION
@@ -19,9 +21,9 @@ EVP_SignInit, EVP_SignUpdate, EVP_SignFinal - EVP signing functions
 The EVP signature routines are a high level interface to digital
 signatures.
 
-EVP_SignInit() initializes a signing context B<ctx> to using digest
-B<type>: this will typically be supplied by a function such as
-EVP_sha1().
+EVP_SignInit_ex() sets up signing context B<ctx> to use digest
+B<type> from ENGINE B<impl>. B<ctx> must be initialized with
+EVP_MD_CTX_init() before calling this function.
 
 EVP_SignUpdate() hashes B<cnt> bytes of data at B<d> into the
 signature context B<ctx>. This function can be called several times on the
@@ -31,18 +33,18 @@ EVP_SignFinal() signs the data in B<ctx> using the private key B<pkey>
 and places the signature in B<sig>. If the B<s> parameter is not NULL
 then the number of bytes of data written (i.e. the length of the signature)
 will be written to the integer at B<s>, at most EVP_PKEY_size(pkey) bytes
-will be written.  After calling EVP_SignFinal() no additional calls to
-EVP_SignUpdate() can be made, but EVP_SignInit() can be called to initialize
-a new signature operation.
+will be written. 
+
+EVP_SignInit() initializes a signing context B<ctx> to use the default
+implementation of digest B<type>.
 
 EVP_PKEY_size() returns the maximum size of a signature in bytes. The actual
 signature returned by EVP_SignFinal() may be smaller.
 
 =head1 RETURN VALUES
 
-EVP_SignInit() and EVP_SignUpdate() do not return values.
-
-EVP_SignFinal() returns 1 for success and 0 for failure.
+EVP_SignInit_ex(), EVP_SignUpdate() and EVP_SignFinal() return 1
+for success and 0 for failure.
 
 EVP_PKEY_size() returns the maximum size of a signature in bytes.
 
@@ -63,11 +65,18 @@ When signing with DSA private keys the random number generator must be seeded
 or the operation will fail. The random number generator does not need to be
 seeded for RSA signatures.
 
+The call to EVP_SignFinal() internally finalizes a copy of the digest context.
+This means that calls to EVP_SignUpdate() and EVP_SignFinal() can be called
+later to digest and sign additional data.
+
+Since only a copy of the digest context is ever finalized the context must
+be cleaned up after use by calling EVP_MD_CTX_cleanup() or a memory leak
+will occur.
+
 =head1 BUGS
 
-Several of the functions do not return values: maybe they should. Although the
-internal digest operations will never fail some future hardware based operations
-might.
+Older versions of this documentation wrongly stated that calls to 
+EVP_SignUpdate() could not be made after calling EVP_SignFinal().
 
 =head1 SEE ALSO
 
@@ -82,4 +91,6 @@ L<SHA1(3)|SHA1(3)>, L<digest(1)|digest(1)>
 EVP_SignInit(), EVP_SignUpdate() and EVP_SignFinal() are
 available in all versions of SSLeay and OpenSSL.
 
+EVP_SignInit_ex() was added in OpenSSL 0.9.7
+
 =cut
diff --git a/src/lib/libcrypto/doc/EVP_VerifyInit.pod b/src/lib/libcrypto/doc/EVP_VerifyInit.pod
index 736a0f4a82..80c656fde8 100644
--- a/src/lib/libcrypto/doc/EVP_VerifyInit.pod
+++ b/src/lib/libcrypto/doc/EVP_VerifyInit.pod
@@ -8,30 +8,35 @@ EVP_VerifyInit, EVP_VerifyUpdate, EVP_VerifyFinal - EVP signature verification f
 
  #include <openssl/evp.h>
 
- void EVP_VerifyInit(EVP_MD_CTX *ctx, const EVP_MD *type);
- void EVP_VerifyUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt);
+ int EVP_VerifyInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl);
+ int EVP_VerifyUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt);
  int EVP_VerifyFinal(EVP_MD_CTX *ctx,unsigned char *sigbuf, unsigned int siglen,EVP_PKEY *pkey);
 
+ int EVP_VerifyInit(EVP_MD_CTX *ctx, const EVP_MD *type);
+
 =head1 DESCRIPTION
 
 The EVP signature verification routines are a high level interface to digital
 signatures.
 
-EVP_VerifyInit() initializes a verification context B<ctx> to using digest
-B<type>: this will typically be supplied by a function such as EVP_sha1().
+EVP_VerifyInit_ex() sets up verification context B<ctx> to use digest
+B<type> from ENGINE B<impl>. B<ctx> must be initialized by calling
+EVP_MD_CTX_init() before calling this function.
 
 EVP_VerifyUpdate() hashes B<cnt> bytes of data at B<d> into the
 verification context B<ctx>. This function can be called several times on the
 same B<ctx> to include additional data.
 
 EVP_VerifyFinal() verifies the data in B<ctx> using the public key B<pkey>
-and against the B<siglen> bytes at B<sigbuf>. After calling EVP_VerifyFinal()
-no additional calls to EVP_VerifyUpdate() can be made, but EVP_VerifyInit()
-can be called to initialize a new verification operation.
+and against the B<siglen> bytes at B<sigbuf>.
+
+EVP_VerifyInit() initializes verification context B<ctx> to use the default
+implementation of digest B<type>.
 
 =head1 RETURN VALUES
 
-EVP_VerifyInit() and EVP_VerifyUpdate() do not return values.
+EVP_VerifyInit_ex() and EVP_VerifyUpdate() return 1 for success and 0 for
+failure.
 
 EVP_VerifyFinal() returns 1 for a correct signature, 0 for failure and -1 if some
 other error occurred.
@@ -49,11 +54,18 @@ digest algorithm must be used with the correct public key type. A list of
 algorithms and associated public key algorithms appears in 
 L<EVP_DigestInit(3)|EVP_DigestInit(3)>.
 
+The call to EVP_VerifyFinal() internally finalizes a copy of the digest context.
+This means that calls to EVP_VerifyUpdate() and EVP_VerifyFinal() can be called
+later to digest and verify additional data.
+
+Since only a copy of the digest context is ever finalized the context must
+be cleaned up after use by calling EVP_MD_CTX_cleanup() or a memory leak
+will occur.
+
 =head1 BUGS
 
-Several of the functions do not return values: maybe they should. Although the
-internal digest operations will never fail some future hardware based operations
-might.
+Older versions of this documentation wrongly stated that calls to 
+EVP_VerifyUpdate() could not be made after calling EVP_VerifyFinal().
 
 =head1 SEE ALSO
 
@@ -69,4 +81,6 @@ L<sha(3)|sha(3)>, L<digest(1)|digest(1)>
 EVP_VerifyInit(), EVP_VerifyUpdate() and EVP_VerifyFinal() are
 available in all versions of SSLeay and OpenSSL.
 
+EVP_VerifyInit_ex() was added in OpenSSL 0.9.7
+
 =cut
diff --git a/src/lib/libcrypto/doc/OPENSSL_VERSION_NUMBER.pod b/src/lib/libcrypto/doc/OPENSSL_VERSION_NUMBER.pod
index 68ea723259..c39ac35e78 100644
--- a/src/lib/libcrypto/doc/OPENSSL_VERSION_NUMBER.pod
+++ b/src/lib/libcrypto/doc/OPENSSL_VERSION_NUMBER.pod
@@ -2,7 +2,7 @@
 
 =head1 NAME
 
-OPENSSL_VERSION_NUMBER, SSLeay SSLeay_version - get OpenSSL version number
+OPENSSL_VERSION_NUMBER, SSLeay, SSLeay_version - get OpenSSL version number
 
 =head1 SYNOPSIS
 
@@ -11,7 +11,7 @@ OPENSSL_VERSION_NUMBER, SSLeay SSLeay_version - get OpenSSL version number
 
  #include <openssl/crypto.h>
  long SSLeay(void);
- char *SSLeay_version(int t);
+ const char *SSLeay_version(int t);
 
 =head1 DESCRIPTION
 
@@ -55,20 +55,32 @@ SSLeay_version() returns different strings depending on B<t>:
 =over 4
 
 =item SSLEAY_VERSION
+
 The text variant of the version number and the release date.  For example,
 "OpenSSL 0.9.5a 1 Apr 2000".
 
 =item SSLEAY_CFLAGS
-The flags given to the C compiler when compiling OpenSSL are returned in a
-string.
+
+The compiler flags set for the compilation process in the form
+"compiler: ..."  if available or "compiler: information not available"
+otherwise.
+
+=item SSLEAY_BUILT_ON
+
+The date of the build process in the form "built on: ..." if available
+or "built on: date not available" otherwise.
 
 =item SSLEAY_PLATFORM
-The platform name used when OpenSSL was configured is returned.
 
-=back
+The "Configure" target of the library build in the form "platform: ..."
+if available or "platform: information not available" otherwise.
+
+=item SSLEAY_DIR
 
-If the data request isn't available, a text saying that the information is
-not available is returned.
+The "OPENSSLDIR" setting of the library build in the form "OPENSSLDIR: "...""
+if available or "OPENSSLDIR: N/A" otherwise.
+
+=back
 
 For an unknown B<t>, the text "not available" is returned.
 
@@ -84,5 +96,6 @@ L<crypto(3)|crypto(3)>
 
 SSLeay() and SSLEAY_VERSION_NUMBER are available in all versions of SSLeay and OpenSSL.
 OPENSSL_VERSION_NUMBER is available in all versions of OpenSSL.
+B<SSLEAY_DIR> was added in OpenSSL 0.9.7.
 
 =cut
diff --git a/src/lib/libcrypto/doc/RSA_generate_key.pod b/src/lib/libcrypto/doc/RSA_generate_key.pod
index 0e0f0a764c..11bc0b3459 100644
--- a/src/lib/libcrypto/doc/RSA_generate_key.pod
+++ b/src/lib/libcrypto/doc/RSA_generate_key.pod
@@ -19,7 +19,7 @@ be seeded prior to calling RSA_generate_key().
 
 The modulus size will be B<num> bits, and the public exponent will be
 B<e>. Key sizes with B<num> E<lt> 1024 should be considered insecure.
-The exponent is an odd number, typically 3 or 65535.
+The exponent is an odd number, typically 3, 17 or 65537.
 
 A callback function may be used to provide feedback about the
 progress of the key generation. If B<callback> is not B<NULL>, it
diff --git a/src/lib/libcrypto/doc/RSA_public_encrypt.pod b/src/lib/libcrypto/doc/RSA_public_encrypt.pod
index 23861c0004..8022a23f99 100644
--- a/src/lib/libcrypto/doc/RSA_public_encrypt.pod
+++ b/src/lib/libcrypto/doc/RSA_public_encrypt.pod
@@ -74,10 +74,6 @@ SSL, PKCS #1 v2.0
 
 L<ERR_get_error(3)|ERR_get_error(3)>, L<rand(3)|rand(3)>, L<rsa(3)|rsa(3)>, L<RSA_size(3)|RSA_size(3)>
 
-=head1 NOTES
-
-The L<RSA_PKCS1_RSAref(3)|RSA_PKCS1_RSAref(3)> method supports only the RSA_PKCS1_PADDING mode.
-
 =head1 HISTORY
 
 The B<padding> argument was added in SSLeay 0.8. RSA_NO_PADDING is
diff --git a/src/lib/libcrypto/doc/RSA_set_method.pod b/src/lib/libcrypto/doc/RSA_set_method.pod
index b672712292..14917dd35f 100644
--- a/src/lib/libcrypto/doc/RSA_set_method.pod
+++ b/src/lib/libcrypto/doc/RSA_set_method.pod
@@ -3,7 +3,7 @@
 =head1 NAME
 
 RSA_set_default_method, RSA_get_default_method, RSA_set_method,
-RSA_get_method, RSA_PKCS1_SSLeay, RSA_PKCS1_RSAref,
+RSA_get_method, RSA_PKCS1_SSLeay,
 RSA_null_method, RSA_flags, RSA_new_method - select RSA method
 
 =head1 SYNOPSIS
@@ -15,14 +15,12 @@ RSA_null_method, RSA_flags, RSA_new_method - select RSA method
 
  RSA_METHOD *RSA_get_default_openssl_method(void);
 
- RSA_METHOD *RSA_set_method(RSA *rsa, ENGINE *engine);
+ int RSA_set_method(RSA *rsa, ENGINE *engine);
 
  RSA_METHOD *RSA_get_method(RSA *rsa);
 
  RSA_METHOD *RSA_PKCS1_SSLeay(void);
 
- RSA_METHOD *RSA_PKCS1_RSAref(void);
-
  RSA_METHOD *RSA_null_method(void);
 
  int RSA_flags(RSA *rsa);
@@ -35,17 +33,8 @@ An B<RSA_METHOD> specifies the functions that OpenSSL uses for RSA
 operations. By modifying the method, alternative implementations
 such as hardware accelerators may be used.
 
-Initially, the default is to use the OpenSSL internal implementation,
-unless OpenSSL was configured with the C<rsaref> or C<-DRSA_NULL>
-options. RSA_PKCS1_SSLeay() returns a pointer to that method.
-
-RSA_PKCS1_RSAref() returns a pointer to a method that uses the RSAref
-library. This is the default method in the C<rsaref> configuration;
-the function is not available in other configurations.
-RSA_null_method() returns a pointer to a method that does not support
-the RSA transformation. It is the default if OpenSSL is compiled with
-C<-DRSA_NULL>. These methods may be useful in the USA because of a
-patent on the RSA cryptosystem.
+Initially, the default is to use the OpenSSL internal implementation.
+RSA_PKCS1_SSLeay() returns a pointer to that method.
 
 RSA_set_default_openssl_method() makes B<meth> the default method for all B<RSA>
 structures created later. B<NB:> This is true only whilst the default engine
@@ -132,9 +121,8 @@ the default engine for RSA operations is used.
 
 =head1 RETURN VALUES
 
-RSA_PKCS1_SSLeay(), RSA_PKCS1_RSAref(), RSA_PKCS1_null_method(),
-RSA_get_default_openssl_method() and RSA_get_method() return pointers to
-the respective RSA_METHODs.
+RSA_PKCS1_SSLeay(), RSA_PKCS1_null_method(), RSA_get_default_openssl_method()
+and RSA_get_method() return pointers to the respective RSA_METHODs.
 
 RSA_set_default_openssl_method() returns no value.
 
@@ -163,6 +151,6 @@ added in OpenSSL 0.9.4.
 RSA_set_default_openssl_method() and RSA_get_default_openssl_method()
 replaced RSA_set_default_method() and RSA_get_default_method() respectively,
 and RSA_set_method() and RSA_new_method() were altered to use B<ENGINE>s
-rather than B<DH_METHOD>s during development of OpenSSL 0.9.6.
+rather than B<RSA_METHOD>s during development of OpenSSL 0.9.6.
 
 =cut
diff --git a/src/lib/libcrypto/doc/bn.pod b/src/lib/libcrypto/doc/bn.pod
index d183028d61..210dfeac08 100644
--- a/src/lib/libcrypto/doc/bn.pod
+++ b/src/lib/libcrypto/doc/bn.pod
@@ -21,19 +21,27 @@ bn - multiprecision integer arithmetics
  BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b);
  BIGNUM *BN_dup(const BIGNUM *a);
 
+ BIGNUM *BN_swap(BIGNUM *a, BIGNUM *b);
+
  int BN_num_bytes(const BIGNUM *a);
  int BN_num_bits(const BIGNUM *a);
  int BN_num_bits_word(BN_ULONG w);
 
- int BN_add(BIGNUM *r, BIGNUM *a, BIGNUM *b);
+ int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
  int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
  int BN_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx);
+ int BN_sqr(BIGNUM *r, BIGNUM *a, BN_CTX *ctx);
  int BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *a, const BIGNUM *d,
          BN_CTX *ctx);
- int BN_sqr(BIGNUM *r, BIGNUM *a, BN_CTX *ctx);
  int BN_mod(BIGNUM *rem, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
+ int BN_nnmod(BIGNUM *rem, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
+ int BN_mod_add(BIGNUM *ret, BIGNUM *a, BIGNUM *b, const BIGNUM *m,
+         BN_CTX *ctx);
+ int BN_mod_sub(BIGNUM *ret, BIGNUM *a, BIGNUM *b, const BIGNUM *m,
+         BN_CTX *ctx);
  int BN_mod_mul(BIGNUM *ret, BIGNUM *a, BIGNUM *b, const BIGNUM *m,
          BN_CTX *ctx);
+ int BN_mod_sqr(BIGNUM *ret, BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
  int BN_exp(BIGNUM *r, BIGNUM *a, BIGNUM *p, BN_CTX *ctx);
  int BN_mod_exp(BIGNUM *r, BIGNUM *a, const BIGNUM *p,
          const BIGNUM *m, BN_CTX *ctx);
@@ -54,13 +62,14 @@ bn - multiprecision integer arithmetics
 
  int BN_zero(BIGNUM *a);
  int BN_one(BIGNUM *a);
- BIGNUM *BN_value_one(void);
+ const BIGNUM *BN_value_one(void);
  int BN_set_word(BIGNUM *a, unsigned long w);
  unsigned long BN_get_word(BIGNUM *a);
 
  int BN_rand(BIGNUM *rnd, int bits, int top, int bottom);
  int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom);
  int BN_rand_range(BIGNUM *rnd, BIGNUM *range);
+ int BN_pseudo_rand_range(BIGNUM *rnd, BIGNUM *range);
 
  BIGNUM *BN_generate_prime(BIGNUM *ret, int bits,int safe, BIGNUM *add,
          BIGNUM *rem, void (*callback)(int, int, void *), void *cb_arg);
@@ -138,7 +147,7 @@ of B<BIGNUM>s to external formats is described in L<BN_bn2bin(3)|BN_bn2bin(3)>.
 L<bn_internal(3)|bn_internal(3)>,
 L<dh(3)|dh(3)>, L<err(3)|err(3)>, L<rand(3)|rand(3)>, L<rsa(3)|rsa(3)>,
 L<BN_new(3)|BN_new(3)>, L<BN_CTX_new(3)|BN_CTX_new(3)>,
-L<BN_copy(3)|BN_copy(3)>, L<BN_num_bytes(3)|BN_num_bytes(3)>,
+L<BN_copy(3)|BN_copy(3)>, L<BN_swap(3)|BN_swap(3)>, L<BN_num_bytes(3)|BN_num_bytes(3)>,
 L<BN_add(3)|BN_add(3)>, L<BN_add_word(3)|BN_add_word(3)>,
 L<BN_cmp(3)|BN_cmp(3)>, L<BN_zero(3)|BN_zero(3)>, L<BN_rand(3)|BN_rand(3)>,
 L<BN_generate_prime(3)|BN_generate_prime(3)>, L<BN_set_bit(3)|BN_set_bit(3)>,
diff --git a/src/lib/libcrypto/doc/rsa.pod b/src/lib/libcrypto/doc/rsa.pod
index ef0d4df205..09ad30cab1 100644
--- a/src/lib/libcrypto/doc/rsa.pod
+++ b/src/lib/libcrypto/doc/rsa.pod
@@ -37,7 +37,6 @@ rsa - RSA public key cryptosystem
  int RSA_set_method(RSA *rsa, ENGINE *engine);
  RSA_METHOD *RSA_get_method(RSA *rsa);
  RSA_METHOD *RSA_PKCS1_SSLeay(void);
- RSA_METHOD *RSA_PKCS1_RSAref(void);
  RSA_METHOD *RSA_null_method(void);
  int RSA_flags(RSA *rsa);
  RSA *RSA_new_method(ENGINE *engine);