OpenSL                                             evp(3openssl)



NAME
     evp - high-level cryptographic functions

SYNOPSIS
      #include 

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

     EVPSeal... and EVPOpen... provide public key encryption
     and decryption to implement digital "envelopes".

     The EVPSign... and EVPVerify... functions implement
     digital signatures.

     Symmetric encryption is available with the EVPEncrypt...
     functions.  The EVPDigest... functions provide message
     digests.

     Algorithms are loaded with OpenSLaddallalgorithms(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
     EVPDigestInit(3), EVPEncryptInit(3), EVPOpenInit(3),
     EVPSealInit(3), EVPSignInit(3), EVPVerifyInit(3),
     OpenSLaddallalgorithms(3), engine(3)




















OpenSL-0.9.8       Last change: Oct 11 2005                    1