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instance method
OpenSSL::Engine#digest
engine.digest(name) → OpenSSL::Digest
ext/openssl/ossl_engine.c
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static VALUE
ossl_engine_get_digest(VALUE self, VALUE name)
{
ENGINE *e;
const EVP_MD *md, *tmp;
int nid;
tmp = EVP_get_digestbyname(StringValueCStr(name));
if(!tmp) ossl_raise(eEngineError, "no such digest `%"PRIsVALUE"'", name);
nid = EVP_MD_nid(tmp);
GetEngine(self, e);
md = ENGINE_get_digest(e, nid);
if(!md) ossl_raise(eEngineError, NULL);
return ossl_digest_new(md);
}
Returns a new instance of OpenSSL::Digest by name.
Will raise an EngineError if the digest is unavailable.
Example
e = OpenSSL::Engine.by_id("openssl") #=> #<OpenSSL::Engine id="openssl" name="Software engine support"> e.digest("SHA1") #=> #<OpenSSL::Digest: da39a3ee5e6b4b0d3255bfef95601890afd80709> e.digest("zomg") #=> OpenSSL::Engine::EngineError: no such digest `zomg'