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| author | cvs2svn <admin@example.com> | 2012-07-13 17:49:56 +0000 |
|---|---|---|
| committer | cvs2svn <admin@example.com> | 2012-07-13 17:49:56 +0000 |
| commit | ee04221ea8063435416c7e6369e6eae76843aa71 (patch) | |
| tree | 821921a1dd0a5a3cece91121e121cc63c4b68128 /src/lib/libcrypto/doc/evp.pod | |
| parent | adf6731f6e1d04718aee00cb93435143046aee9a (diff) | |
| download | openbsd-eric_g2k12.tar.gz openbsd-eric_g2k12.tar.bz2 openbsd-eric_g2k12.zip | |
This commit was manufactured by cvs2git to create tag 'eric_g2k12'.eric_g2k12
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| -rw-r--r-- | src/lib/libcrypto/doc/evp.pod | 55 |
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diff --git a/src/lib/libcrypto/doc/evp.pod b/src/lib/libcrypto/doc/evp.pod deleted file mode 100644 index 9faa349243..0000000000 --- a/src/lib/libcrypto/doc/evp.pod +++ /dev/null | |||
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| 1 | =pod | ||
| 2 | |||
| 3 | =head1 NAME | ||
| 4 | |||
| 5 | evp - high-level cryptographic functions | ||
| 6 | |||
| 7 | =head1 SYNOPSIS | ||
| 8 | |||
| 9 | #include <openssl/evp.h> | ||
| 10 | |||
| 11 | =head1 DESCRIPTION | ||
| 12 | |||
| 13 | The EVP library provides a high-level interface to cryptographic | ||
| 14 | functions. | ||
| 15 | |||
| 16 | B<EVP_Seal>I<...> and B<EVP_Open>I<...> provide public key encryption | ||
| 17 | and decryption to implement digital "envelopes". | ||
| 18 | |||
| 19 | The B<EVP_Sign>I<...> and B<EVP_Verify>I<...> functions implement | ||
| 20 | digital signatures. | ||
| 21 | |||
| 22 | Symmetric encryption is available with the B<EVP_Encrypt>I<...> | ||
| 23 | functions. The B<EVP_Digest>I<...> functions provide message digests. | ||
| 24 | |||
| 25 | The B<EVP_PKEY>I<...> functions provide a high level interface to | ||
| 26 | asymmetric algorithms. | ||
| 27 | |||
| 28 | Algorithms are loaded with OpenSSL_add_all_algorithms(3). | ||
| 29 | |||
| 30 | All the symmetric algorithms (ciphers), digests and asymmetric algorithms | ||
| 31 | (public key algorithms) can be replaced by ENGINE modules providing alternative | ||
| 32 | implementations. If ENGINE implementations of ciphers or digests are registered | ||
| 33 | as defaults, then the various EVP functions will automatically use those | ||
| 34 | implementations automatically in preference to built in software | ||
| 35 | implementations. For more information, consult the engine(3) man page. | ||
| 36 | |||
| 37 | Although low level algorithm specific functions exist for many algorithms | ||
| 38 | their use is discouraged. They cannot be used with an ENGINE and ENGINE | ||
| 39 | versions of new algorithms cannot be accessed using the low level functions. | ||
| 40 | Also makes code harder to adapt to new algorithms and some options are not | ||
| 41 | cleanly supported at the low level and some operations are more efficient | ||
| 42 | using the high level interface. | ||
| 43 | |||
| 44 | =head1 SEE ALSO | ||
| 45 | |||
| 46 | L<EVP_DigestInit(3)|EVP_DigestInit(3)>, | ||
| 47 | L<EVP_EncryptInit(3)|EVP_EncryptInit(3)>, | ||
| 48 | L<EVP_OpenInit(3)|EVP_OpenInit(3)>, | ||
| 49 | L<EVP_SealInit(3)|EVP_SealInit(3)>, | ||
| 50 | L<EVP_SignInit(3)|EVP_SignInit(3)>, | ||
| 51 | L<EVP_VerifyInit(3)|EVP_VerifyInit(3)>, | ||
| 52 | L<OpenSSL_add_all_algorithms(3)|OpenSSL_add_all_algorithms(3)>, | ||
| 53 | L<engine(3)|engine(3)> | ||
| 54 | |||
| 55 | =cut | ||
