method

cipher

v2_2_9 - Show latest stable - Class: OpenSSL::Engine

cipher(p1)

public

This returns an OpenSSL::Cipher by name, if it is available in this engine.

A EngineError will be raised if the cipher is unavailable.

e = OpenSSL::Engine.by_id("openssl")
 => #<OpenSSL::Engine id="openssl" name="Software engine support">
e.cipher("RC4")
 => #<OpenSSL::Cipher:0x007fc5cacc3048>

static VALUE
ossl_engine_get_cipher(VALUE self, VALUE name)
{
    ENGINE *e;
    const EVP_CIPHER *ciph, *tmp;
    char *s;
    int nid;

    s = StringValuePtr(name);
    tmp = EVP_get_cipherbyname(s);
    if(!tmp) ossl_raise(eEngineError, "no such cipher `%s'", s);
    nid = EVP_CIPHER_nid(tmp);
    GetEngine(self, e);
    ciph = ENGINE_get_cipher(e, nid);
    if(!ciph) ossl_raise(eEngineError, NULL);

    return ossl_cipher_new(ciph);
}

cipher

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