evp man page on SmartOS

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evp(3)				    OpenSSL				evp(3)

       evp - high-level cryptographic functions

	#include <openssl/evp.h>

       The EVP library provides a high-level interface to cryptographic

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

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

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

       The EVP_PKEY... functions provide a high level interface to asymmetric

       Algorithms are loaded with OpenSSL_add_all_algorithms(3).

       All the symmetric algorithms (ciphers), digests and asymmetric
       algorithms (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 implementations. For more information,
       consult the engine(3) man page.

       Although low level algorithm specific functions exist for many
       algorithms their use is discouraged. They cannot be used with an ENGINE
       and ENGINE versions of new algorithms cannot be accessed using the low
       level functions.	 Also makes code harder to adapt to new algorithms and
       some options are not cleanly supported at the low level and some
       operations are more efficient using the high level interface.

       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)

1.0.1g				  2014-03-17				evp(3)

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