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instance method

OpenSSL::Digest#<<

<<(p1)

ext/openssl/ossl_digest.c View on GitHub ↗

VALUE
ossl_digest_update(VALUE self, VALUE data)
{
    EVP_MD_CTX *ctx;

    StringValue(data);
    GetDigest(self, ctx);

    if (!EVP_DigestUpdate(ctx, RSTRING_PTR(data), RSTRING_LEN(data)))
        ossl_raise(eDigestError, "EVP_DigestUpdate");

    return self;
}

Alias of #update

Not every message digest can be computed in one single pass. If a message digest is to be computed from several subsequent sources, then each may be passed individually to the Digest instance.

Example

digest = OpenSSL::Digest.new('SHA256')
digest.update('First input')
digest << 'Second input' # equivalent to digest.update('Second input')
result = digest.digest

See also #update .new #block_length .digest also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1

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