crypto(3)

NAME
crypto - OpenSSL cryptographic library

SYNOPSIS

DESCRIPTION
The OpenSSL crypto library implements a wide range of cryptographic algorithms used in various Internet standards. The services provided by this library are used by the OpenSSL implementations of SSL, TLS and S/MIME, and they have also been used to implement SSH, OpenPGP, and other cryptographic standards.

OVERVIEW
libcrypto consists of a number of sub-libraries that implement the individual algorithms.

The functionality includes symmetric encryption, public key cryptography and key agreement, certificate handling, cryptographic hash functions and a cryptographic pseudo-random number generator.

SYMMETRIC CIPHERS
    blowfish(3), cast(3), des(3), idea(3), rc2(3), rc4(3), rc5(3)

PUBLIC KEY CRYPTOGRAPHY AND KEY AGREEMENT
    dsa(3), dh(3), rsa(3)

CERTIFICATES
    x509(3), x509v3(3)

AUTHENTICATION CODES, HASH FUNCTIONS
    hmac(3), md2(3), md4(3), md5(3), mdc2(3), ripemd(3), sha(3)

AUXILIARY FUNCTIONS
    err(3), threads(3), rand(3), OPENSSL_VERSION_NUMBER(3)

INPUT/OUTPUT, DATA ENCODING
    asn1(3), bio(3), evp(3), pem(3), pkcs7(3), pkcs12(3)

INTERNAL FUNCTIONS
    bn(3), buffer(3), lhash(3), objects(3), stack(3), txt_db(3)

SEE ALSO
openssl(1), ssl(3)