evp(3ssl) - phpMan

evp(3SSL)                                    OpenSSL                                    evp(3SSL)



NAME
       evp - high-level cryptographic functions

SYNOPSIS
        #include <openssl/evp.h>

DESCRIPTION
       The EVP library provides a high-level interface to cryptographic functions.

       EVP_Seal... and EVP_Open... provide public key encryption and decryption to implement
       digital "envelopes".

       The EVP_Sign... and EVP_Verify... functions implement digital signatures.

       Symmetric encryption is available with the EVP_Encrypt...  functions.  The EVP_Digest...
       functions provide message digests.

       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.

SEE ALSO
       EVP_DigestInit(3), EVP_EncryptInit(3), EVP_OpenInit(3), EVP_SealInit(3), EVP_SignInit(3),
       EVP_VerifyInit(3), OpenSSL_add_all_algorithms(3), engine(3)



0.9.8g                                      2002-08-05                                  evp(3SSL)

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