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=pod
=head1 NAME
evp - high-level cryptographic functions
=head1 SYNOPSIS
#include <openssl/evp.h>
=head1 DESCRIPTION
The EVP library provides a high-level interface to cryptographic
functions.
B<EVP_Seal>I<...> and B<EVP_Open>I<...> provide public key encryption
and decryption to implement digital "envelopes".
The B<EVP_Sign>I<...> and B<EVP_Verify>I<...> functions implement
digital signatures.
Symmetric encryption is available with the B<EVP_Encrypt>I<...>
functions. The B<EVP_Digest>I<...> functions provide message digests.
Algorithms are loaded with OpenSSL_add_all_algorithms(3).
=head1 SEE ALSO
L<EVP_DigestInit(3)|EVP_DigestInit(3)>,
L<EVP_EncryptInit(3)|EVP_EncryptInit(3)>,
L<EVP_OpenInit(3)|EVP_OpenInit(3)>,
L<EVP_SealInit(3)|EVP_SealInit(3)>,
L<EVP_SignInit(3)|EVP_SignInit(3)>,
L<EVP_VerifyInit(3)|EVP_VerifyInit(3)>,
L<OpenSSL_add_all_algorithms(3)|OpenSSL_add_all_algorithms(3)>
=cut
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