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OpenDarwin 7.2.1 - man page for evp (opendarwin section 3)

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evp(3)					     OpenSSL					   evp(3)

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 dig-
       ital "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 pro-
       viding alternative implementations. If ENGINE implementations of ciphers or digests are
       registered as defaults, then the various EVP functions will automatically use those imple-
       mentations 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)

0.9.7d					    2003-11-20					   evp(3)
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