6 files changed, 52 insertions, 21 deletions

diff --git a/src/lib/libcrypto/doc/DSA_get_ex_new_index.pod b/src/lib/libcrypto/doc/DSA_get_ex_new_index.pod
index 4612e708ec..fb6efc1182 100644
--- a/src/lib/libcrypto/doc/DSA_get_ex_new_index.pod
+++ b/src/lib/libcrypto/doc/DSA_get_ex_new_index.pod
@@ -6,7 +6,7 @@ DSA_get_ex_new_index, DSA_set_ex_data, DSA_get_ex_data - add application specifi
 
 =head1 SYNOPSIS
 
- #include <openssl/DSA.h>
+ #include <openssl/dsa.h>
 
  int DSA_get_ex_new_index(long argl, void *argp,
                 CRYPTO_EX_new *new_func,
diff --git a/src/lib/libcrypto/doc/EVP_DigestInit.pod b/src/lib/libcrypto/doc/EVP_DigestInit.pod
index 236e2fa8d1..37a751b1c5 100644
--- a/src/lib/libcrypto/doc/EVP_DigestInit.pod
+++ b/src/lib/libcrypto/doc/EVP_DigestInit.pod
@@ -64,9 +64,9 @@ EVP digest routines
 
 The EVP digest routines are a high level interface to message digests.
 
-EVP_MD_CTX_init() initializes digest contet B<ctx>.
+EVP_MD_CTX_init() initializes digest context B<ctx>.
 
-EVP_MD_CTX_create() allocates, initializes and returns a digest contet.
+EVP_MD_CTX_create() allocates, initializes and returns a digest context.
 
 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
@@ -102,7 +102,7 @@ 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.
+context 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.
@@ -132,7 +132,9 @@ return B<EVP_MD> structures for the MD2, MD5, SHA, SHA1, MDC2 and RIPEMD160 dige
 algorithms respectively. The associated signature algorithm is RSA in each case.
 
 EVP_dss() and EVP_dss1() return B<EVP_MD> structures for SHA and SHA1 digest
-algorithms but using DSS (DSA) for the signature algorithm.
+algorithms but using DSS (DSA) for the signature algorithm. Note: there is 
+no need to use these pseudo-digests in OpenSSL 1.0.0 and later, they are
+however retained for compatibility.
 
 EVP_md_null() is a "null" message digest that does nothing: i.e. the hash it
 returns is of zero length.
@@ -228,12 +230,6 @@ digest name passed on the command line.
  printf("\n");
  }
 
-=head1 BUGS
-
-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.
-
 =head1 SEE ALSO
 
 L<evp(3)|evp(3)>, L<HMAC(3)|HMAC(3)>, L<MD2(3)|MD2(3)>,
@@ -253,4 +249,11 @@ EVP_md_null(), EVP_md2(), EVP_md5(), EVP_sha(), EVP_sha1(),
 EVP_dss(), EVP_dss1(), EVP_mdc2() and EVP_ripemd160() were
 changed to return truely const EVP_MD * in OpenSSL 0.9.7.
 
+The link between digests and signing algorithms was fixed in OpenSSL 1.0 and
+later, so now EVP_sha1() can be used with RSA and DSA, there is no need to
+use EVP_dss1() any more.
+
+OpenSSL 1.0 and later does not include the MD2 digest algorithm in the
+default configuration due to its security weaknesses.
+
 =cut
diff --git a/src/lib/libcrypto/doc/EVP_SignInit.pod b/src/lib/libcrypto/doc/EVP_SignInit.pod
index 0bace24938..781d43e401 100644
--- a/src/lib/libcrypto/doc/EVP_SignInit.pod
+++ b/src/lib/libcrypto/doc/EVP_SignInit.pod
@@ -77,6 +77,15 @@ will occur.
 Older versions of this documentation wrongly stated that calls to 
 EVP_SignUpdate() could not be made after calling EVP_SignFinal().
 
+Since the private key is passed in the call to EVP_SignFinal() any error
+relating to the private key (for example an unsuitable key and digest
+combination) will not be indicated until after potentially large amounts of
+data have been passed through EVP_SignUpdate().
+
+It is not possible to change the signing parameters using these function.
+
+The previous two bugs are fixed in the newer EVP_SignDigest*() function.
+
 =head1 SEE ALSO
 
 L<EVP_VerifyInit(3)|EVP_VerifyInit(3)>,
diff --git a/src/lib/libcrypto/doc/EVP_VerifyInit.pod b/src/lib/libcrypto/doc/EVP_VerifyInit.pod
index b6afaedee5..9097f09410 100644
--- a/src/lib/libcrypto/doc/EVP_VerifyInit.pod
+++ b/src/lib/libcrypto/doc/EVP_VerifyInit.pod
@@ -67,6 +67,15 @@ will occur.
 Older versions of this documentation wrongly stated that calls to 
 EVP_VerifyUpdate() could not be made after calling EVP_VerifyFinal().
 
+Since the public key is passed in the call to EVP_SignFinal() any error
+relating to the private key (for example an unsuitable key and digest
+combination) will not be indicated until after potentially large amounts of
+data have been passed through EVP_SignUpdate().
+
+It is not possible to change the signing parameters using these function.
+
+The previous two bugs are fixed in the newer EVP_VerifyDigest*() function.
+
 =head1 SEE ALSO
 
 L<evp(3)|evp(3)>,
diff --git a/src/lib/libcrypto/doc/d2i_RSAPublicKey.pod b/src/lib/libcrypto/doc/d2i_RSAPublicKey.pod
index 279b29c873..aa6078bcf6 100644
--- a/src/lib/libcrypto/doc/d2i_RSAPublicKey.pod
+++ b/src/lib/libcrypto/doc/d2i_RSAPublicKey.pod
@@ -11,21 +11,21 @@ d2i_Netscape_RSA - RSA public and private key encoding functions.
  #include <openssl/rsa.h>
  #include <openssl/x509.h>
 
- RSA * d2i_RSAPublicKey(RSA **a, unsigned char **pp, long length);
+ RSA * d2i_RSAPublicKey(RSA **a, const unsigned char **pp, long length);
 
  int i2d_RSAPublicKey(RSA *a, unsigned char **pp);
 
- RSA * d2i_RSA_PUBKEY(RSA **a, unsigned char **pp, long length);
+ RSA * d2i_RSA_PUBKEY(RSA **a, const unsigned char **pp, long length);
 
  int i2d_RSA_PUBKEY(RSA *a, unsigned char **pp);
 
- RSA * d2i_RSAPrivateKey(RSA **a, unsigned char **pp, long length);
+ RSA * d2i_RSAPrivateKey(RSA **a, const unsigned char **pp, long length);
 
  int i2d_RSAPrivateKey(RSA *a, unsigned char **pp);
 
  int i2d_Netscape_RSA(RSA *a, unsigned char **pp, int (*cb)());
 
- RSA * d2i_Netscape_RSA(RSA **a, unsigned char **pp, long length, int (*cb)());
+ RSA * d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length, int (*cb)());
 
 =head1 DESCRIPTION
 
diff --git a/src/lib/libcrypto/doc/evp.pod b/src/lib/libcrypto/doc/evp.pod
index b3ca14314f..9faa349243 100644
--- a/src/lib/libcrypto/doc/evp.pod
+++ b/src/lib/libcrypto/doc/evp.pod
@@ -22,14 +22,24 @@ digital signatures.
 Symmetric encryption is available with the B<EVP_Encrypt>I<...>
 functions.  The B<EVP_Digest>I<...> functions provide message digests.
 
+The B<EVP_PKEY>I<...> functions provide a high level interface to
+asymmetric algorithms.
+
 Algorithms are loaded with OpenSSL_add_all_algorithms(3).
 
-All the symmetric algorithms (ciphers) and digests can be replaced by ENGINE
-modules providing alternative implementations. If ENGINE implementations of
-ciphers or digests are registered as defaults, then the various EVP functions
-will automatically use those implementations automatically in preference to
-built in software implementations. For more information, consult the engine(3)
-man page.
+All the symmetric algorithms (ciphers), digests and asymmetric algorithms
+(public key algorithms) can be replaced by ENGINE modules providing alternative
+implementations. If ENGINE implementations of ciphers or digests are registered
+as defaults, then the various EVP functions will automatically use those
+implementations automatically in preference to built in software
+implementations. For more information, consult the engine(3) man page.
+
+Although low level algorithm specific functions exist for many algorithms
+their use is discouraged. They cannot be used with an ENGINE and ENGINE
+versions of new algorithms cannot be accessed using the low level functions.
+Also makes code harder to adapt to new algorithms and some options are not 
+cleanly supported at the low level and some operations are more efficient
+using the high level interface.
 
 =head1 SEE ALSO