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    The following form allows you to view linux man pages.

    Command:

    evp

    
    
    

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

    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)
    
    
    

    1.0.1e 2013-02-11 evp(3)

    
    
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