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diff --git a/src/lib/libcrypto/doc/PKCS7_encrypt.pod b/src/lib/libcrypto/doc/PKCS7_encrypt.pod
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+=pod
+
+=head1 NAME
+
+PKCS7_encrypt - create a PKCS#7 envelopedData structure
+
+=head1 SYNOPSIS
+
+PKCS7 *PKCS7_encrypt(STACK_OF(X509) *certs, BIO *in, const EVP_CIPHER *cipher, int flags);
+
+=head1 DESCRIPTION
+
+PKCS7_encrypt() creates and returns a PKCS#7 envelopedData structure. B<certs>
+is a list of recipient certificates. B<in> is the content to be encrypted.
+B<cipher> is the symmetric cipher to use. B<flags> is an optional set of flags.
+
+=head1 NOTES
+
+Only RSA keys are supported in PKCS#7 and envelopedData so the recipient certificates
+supplied to this function must all contain RSA public keys, though they do not have to
+be signed using the RSA algorithm.
+
+EVP_des_ede3_cbc() (triple DES) is the algorithm of choice for S/MIME use because
+most clients will support it.
+
+Some old "export grade" clients may only support weak encryption using 40 or 64 bit
+RC2. These can be used by passing EVP_rc2_40_cbc() and EVP_rc2_64_cbc() respectively.
+
+The algorithm passed in the B<cipher> parameter must support ASN1 encoding of its
+parameters. 
+
+Many browsers implement a "sign and encrypt" option which is simply an S/MIME 
+envelopedData containing an S/MIME signed message. This can be readily produced
+by storing the S/MIME signed message in a memory BIO and passing it to
+PKCS7_encrypt().
+
+The following flags can be passed in the B<flags> parameter.
+
+If the B<PKCS7_TEXT> flag is set MIME headers for type B<text/plain> are prepended
+to the data.
+
+Normally the supplied content is translated into MIME canonical format (as required
+by the S/MIME specifications) if B<PKCS7_BINARY> is set no translation occurs. This
+option should be used if the supplied data is in binary format otherwise the translation
+will corrupt it. If B<PKCS7_BINARY> is set then B<PKCS7_TEXT> is ignored.
+
+=head1 RETURN VALUES
+
+PKCS7_encrypt() returns either a valid PKCS7 structure or NULL if an error occurred.
+The error can be obtained from ERR_get_error(3).
+
+=head1 BUGS
+
+The lack of single pass processing and need to hold all data in memory as
+mentioned in PKCS7_sign() also applies to PKCS7_verify().
+
+=head1 SEE ALSO
+
+L<ERR_get_error(3)|ERR_get_error(3)>, L<PKCS7_decrypt(3)|PKCS7_decrypt(3)>
+
+=head1 HISTORY
+
+PKCS7_decrypt() was added to OpenSSL 0.9.5
+
+=cut