3 files changed, 190 insertions, 0 deletions
diff --git a/doc/crypto/EVP_PKEY_new.pod b/doc/crypto/EVP_PKEY_new.pod
new file mode 100644
index 0000000000..10687e458d
--- /dev/null
+++ b/doc/crypto/EVP_PKEY_new.pod
@@ -0,0 +1,47 @@
+=pod
+
+=head1 NAME
+
+EVP_PKEY_new, EVP_PKEY_free - private key allocation functions.
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ EVP_PKEY *EVP_PKEY_new(void);
+ void EVP_PKEY_free(EVP_PKEY *key);
+
+
+=head1 DESCRIPTION
+
+The EVP_PKEY_new() function allocates an empty B<EVP_PKEY> 
+structure which is used by OpenSSL to store private keys.
+
+EVP_PKEY_free() frees up the private key B<key>.
+
+=head1 NOTES
+
+The B<EVP_PKEY> structure is used by various OpenSSL functions
+which require a general private key without reference to any
+particular algorithm.
+
+The structure returned by EVP_PKEY_new() is empty. To add a
+private key to this empty structure the functions described in
+L<EVP_PKEY_set1_RSA(3)|EVP_PKEY_set1_RSA(3)> should be used.
+
+=head1 RETURN VALUES
+
+EVP_PKEY_new() returns either the newly allocated B<EVP_PKEY>
+structure of B<NULL> if an error occurred.
+
+EVP_PKEY_free() does not return a value.
+
+=head1 SEE ALSO
+
+L<EVP_PKEY_set1_RSA(3)|EVP_PKEY_set1_RSA(3)>
+
+=head1 HISTORY
+
+TBA
+
+=cut
diff --git a/doc/crypto/EVP_PKEY_set1_RSA.pod b/doc/crypto/EVP_PKEY_set1_RSA.pod
new file mode 100644
index 0000000000..2db692e271
--- /dev/null
+++ b/doc/crypto/EVP_PKEY_set1_RSA.pod
@@ -0,0 +1,80 @@
+=pod
+
+=head1 NAME
+
+EVP_PKEY_set1_RSA, EVP_PKEY_set1_DSA, EVP_PKEY_set1_DH, EVP_PKEY_set1_EC_KEY,
+EVP_PKEY_get1_RSA, EVP_PKEY_get1_DSA, EVP_PKEY_get1_DH, EVP_PKEY_get1_EC_KEY,
+EVP_PKEY_assign_RSA, EVP_PKEY_assign_DSA, EVP_PKEY_assign_DH, EVP_PKEY_assign_EC_KEY,
+EVP_PKEY_type - EVP_PKEY assignment functions.
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ int EVP_PKEY_set1_RSA(EVP_PKEY *pkey,RSA *key);
+ int EVP_PKEY_set1_DSA(EVP_PKEY *pkey,DSA *key);
+ int EVP_PKEY_set1_DH(EVP_PKEY *pkey,DH *key);
+ int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey,EC_KEY *key);
+
+ RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
+ DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
+ DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey);
+ EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey);
+
+ int EVP_PKEY_assign_RSA(EVP_PKEY *pkey,RSA *key);
+ int EVP_PKEY_assign_DSA(EVP_PKEY *pkey,DSA *key);
+ int EVP_PKEY_assign_DH(EVP_PKEY *pkey,DH *key);
+ int EVP_PKEY_assign_EC_KEY(EVP_PKEY *pkey,EC_KEY *key);
+
+ int EVP_PKEY_type(int type);
+
+=head1 DESCRIPTION
+
+EVP_PKEY_set1_RSA(), EVP_PKEY_set1_DSA(), EVP_PKEY_set1_DH() and
+EVP_PKEY_set1_EC_KEY() set the key referenced by B<pkey> to B<key>.
+
+EVP_PKEY_get1_RSA(), EVP_PKEY_get1_DSA(), EVP_PKEY_get1_DH() and
+EVP_PKEY_get1_EC_KEY() return the referenced key in B<pkey> or
+B<NULL> if the key is not of the correct type.
+
+EVP_PKEY_assign_RSA() EVP_PKEY_assign_DSA(), EVP_PKEY_assign_DH()
+and EVP_PKEY_assign_EC_KEY() also set the referenced key to B<key>
+however these use the supplied B<key> internally and so B<key>
+will be freed when the parent B<pkey> is freed.
+
+EVP_PKEY_type() returns the type of key corresponding to the value
+B<type>. The type of a key can be obtained with
+EVP_PKEY_type(pkey->type). The return value will be EVP_PKEY_RSA,
+EVP_PKEY_DSA, EVP_PKEY_DH or EVP_PKEY_EC for the corresponding
+key types or NID_undef if the key type is unassigned.
+
+=head1 NOTES
+
+In accordance with the OpenSSL naming convention the key obtained
+from or assigned to the B<pkey> using the B<1> functions must be
+freed as well as B<pkey>.
+
+EVP_PKEY_assign_RSA() EVP_PKEY_assign_DSA(), EVP_PKEY_assign_DH()
+EVP_PKEY_assign_EC_KEY() are implemented as macros.
+
+=head1 RETURN VALUES
+
+EVP_PKEY_set1_RSA(), EVP_PKEY_set1_DSA(), EVP_PKEY_set1_DH() and
+EVP_PKEY_set1_EC_KEY() return 1 for success or 0 for failure.
+
+EVP_PKEY_get1_RSA(), EVP_PKEY_get1_DSA(), EVP_PKEY_get1_DH() and
+EVP_PKEY_get1_EC_KEY() return the referenced key or B<NULL> if 
+an error occurred.
+
+EVP_PKEY_assign_RSA() EVP_PKEY_assign_DSA(), EVP_PKEY_assign_DH()
+and EVP_PKEY_assign_EC_KEY() return 1 for success and 0 for failure.
+
+=head1 SEE ALSO
+
+L<EVP_PKEY_new(3)|EVP_PKEY_new(3)>
+
+=head1 HISTORY
+
+TBA
+
+=cut
diff --git a/doc/crypto/PKCS7_sign.pod b/doc/crypto/PKCS7_sign.pod
new file mode 100644
index 0000000000..95c4609d3c
--- /dev/null
+++ b/doc/crypto/PKCS7_sign.pod
@@ -0,0 +1,63 @@
+=pod
+
+=head1 NAME
+
+PKCS7_sign - create a PKCS#7 signedData structure
+
+=head1 SYNOPSIS
+
+PKCS7 *PKCS7_sign(X509 *signcert, EVP_PKEY *pkey, STACK_OF(X509) *certs, BIO *data, int flags);
+
+=head1 DESCRIPTION
+
+PKCS7_sign() creates and returns a PKCS#7 signedData structure. B<signcert>
+is the certificate to sign with, B<pkey> is the corresponsding private key.
+B<certs> is an optional additional set of certificates to include in the
+PKCS#7 structure (for example any intermediate CAs in the chain). 
+
+The data to be signed is read from BIO B<data>.
+
+B<flags> is an optional set of flags.
+
+=head1 NOTES
+
+Any of the following flags (ored together) can be passed in the B<flags> parameter.
+
+Many S/MIME clients expect the signed content to include valid MIME headers. If
+the B<PKCS7_TEXT> flag is set MIME headers for type B<text/plain> are prepended
+to the data.
+
+If B<PKCS7_NOCERTS> is set the signer's certificate will not be included in the
+PKCS7 structure, the signer's certificate must still be supplied in the B<signcert>
+parameter though. This can reduce the size of the signature if the signers certificate
+can be obtained by other means: for example a previously signed message.
+
+The data being signed is included in the PKCS7 structure, unless B<PKCS7_DETACHED> 
+is set in which case it is omitted. This is used for PKCS7 detached signatures
+which are used in S/MIME plaintext signed messages for example.
+
+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.
+
+The signedData structure includes several PKCS#7 autenticatedAttributes including
+the signing time, the PKCS#7 content type and the supported list of ciphers in
+an SMIMECapabilities attribute. If B<PKCS7_NOATTR> is set then no authenticatedAttributes
+will be used. If B<PKCS7_NOSMIMECAP> is set then just the SMIMECapabilities are
+omitted.
+
+=head1 RETURN VALUES
+
+PKCS7_sign() returns either a valid PKCS7 structure or NULL if an error occurred.
+The error can be obtained from ERR_get_error(3).
+
+=head1 SEE ALSO
+
+L<ERR_get_error(3)|ERR_get_error(3)>, L<PKCS7_verify(3)|PKCS7_verify(3)>
+
+=head1 HISTORY
+
+TBA
+
+=cut