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  • openssl/ossl_pkey.c

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OpenSSL::PKey::PKey

Public Class Methods

new() click to toggle source 
 
               static VALUE
ossl_pkey_initialize(VALUE self)
{
    if (rb_obj_is_instance_of(self, cPKey)) {
        ossl_raise(rb_eNotImpError, "OpenSSL::PKey::PKey is an abstract class.");
    }
    return self;
}

Public Instance Methods

sign(p1, p2) click to toggle source 
 
               static VALUE
ossl_pkey_sign(VALUE self, VALUE digest, VALUE data)
{
    EVP_PKEY *pkey;
    EVP_MD_CTX ctx;
    int buf_len;
    VALUE str;

    if (rb_funcall(self, id_private_q, 0, NULL) != Qtrue) {
        ossl_raise(rb_eArgError, "Private key is needed.");
    }
    GetPKey(self, pkey);
    EVP_SignInit(&ctx, GetDigestPtr(digest));
    StringValue(data);
    EVP_SignUpdate(&ctx, RSTRING(data)->ptr, RSTRING(data)->len);
    str = rb_str_new(0, EVP_PKEY_size(pkey)+16);
    if (!EVP_SignFinal(&ctx, RSTRING(str)->ptr, &buf_len, pkey))
        ossl_raise(ePKeyError, NULL);
    assert(buf_len <= RSTRING(str)->len);
    RSTRING(str)->len = buf_len;
    RSTRING(str)->ptr[buf_len] = 0;

    return str;
}
verify(p1, p2, p3) click to toggle source 
 
               static VALUE
ossl_pkey_verify(VALUE self, VALUE digest, VALUE sig, VALUE data)
{
    EVP_PKEY *pkey;
    EVP_MD_CTX ctx;

    GetPKey(self, pkey);
    EVP_VerifyInit(&ctx, GetDigestPtr(digest));
    StringValue(sig);
    StringValue(data);
    EVP_VerifyUpdate(&ctx, RSTRING(data)->ptr, RSTRING(data)->len);
    switch (EVP_VerifyFinal(&ctx, RSTRING(sig)->ptr, RSTRING(sig)->len, pkey)) {
    case 0:
        return Qfalse;
    case 1:
        return Qtrue;
    default:
        ossl_raise(ePKeyError, NULL);
    }
    return Qnil; /* dummy */
}