The EVP library provides a high-level interface to cryptographic
functions.
-L<B<EVP_Seal>I<...>|EVP_SealInit(3)> and L<B<EVP_Open>I<...>|EVP_OpenInit(3)>
-provide public key encryption and decryption to implement digital "envelopes".
+The L<B<EVP_Seal>I<XXX>|EVP_SealInit(3)> and L<B<EVP_Open>I<XXX>|EVP_OpenInit(3)>
+functions provide public key encryption and decryption to implement digital "envelopes".
-The L<B<EVP_DigestSign>I<...>|EVP_DigestSignInit(3)> and
-L<B<EVP_DigestVerify>I<...>|EVP_DigestVerifyInit(3)> functions implement
+The L<B<EVP_DigestSign>I<XXX>|EVP_DigestSignInit(3)> and
+L<B<EVP_DigestVerify>I<XXX>|EVP_DigestVerifyInit(3)> functions implement
digital signatures and Message Authentication Codes (MACs). Also see the older
-L<B<EVP_Sign>I<...>|EVP_SignInit(3)> and L<B<EVP_Verify>I<...>|EVP_VerifyInit(3)>
+L<B<EVP_Sign>I<XXX>|EVP_SignInit(3)> and L<B<EVP_Verify>I<XXX>|EVP_VerifyInit(3)>
functions.
-Symmetric encryption is available with the L<B<EVP_Encrypt>I<...>|EVP_EncryptInit(3)>
-functions. The L<B<EVP_Digest>I<...>|EVP_DigestInit(3)> functions provide message digests.
+Symmetric encryption is available with the L<B<EVP_Encrypt>I<XXX>|EVP_EncryptInit(3)>
+functions. The L<B<EVP_Digest>I<XXX>|EVP_DigestInit(3)> functions provide message digests.
-The B<EVP_PKEY>I<...> functions provide a high level interface to
+The B<EVP_PKEY>I<XXX> functions provide a high level interface to
asymmetric algorithms. To create a new EVP_PKEY see
L<EVP_PKEY_new(3)>. EVP_PKEYs can be associated
with a private key of a particular algorithm by using the functions
The EVP_PKEY functions support the full range of asymmetric algorithm operations:
-=over
+=over 4
=item For key agreement see L<EVP_PKEY_derive(3)>
implementation. However, new applications should not typically use this (preferring, for example,
PBKDF2 from PCKS#5).
-The L<B<EVP_Encode>I<...>|EVP_EncodeInit(3)> and
-L<B<EVP_Decode>I<...>|EVP_EncodeInit(3)> functions implement base 64 encoding
+The L<B<EVP_Encode>I<XXX>|EVP_EncodeInit(3)> and
+L<B<EVP_Decode>I<XXX>|EVP_EncodeInit(3)> functions implement base 64 encoding
and decoding.
All the symmetric algorithms (ciphers), digests and asymmetric algorithms
-(public key algorithms) can be replaced by L<engine(3)> modules providing alternative
+(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
L<EVP_PKEY_verify_recover(3)>,
L<EVP_PKEY_derive(3)>,
L<EVP_BytesToKey(3)>,
-L<engine(3)>
+L<ENGINE_by_id(3)>
=head1 COPYRIGHT
-Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
-Licensed under the OpenSSL license (the "License"). You may not use
+Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.