Method: OpenSSL::PKey::RSA#public_encrypt

Defined in:
ossl_pkey_rsa.c

#public_encrypt(string) ⇒ String #public_encrypt(string, padding) ⇒ String

Encrypt string with the public key. padding defaults to PKCS1_PADDING. The encrypted string output can be decrypted using #private_decrypt.

Overloads:

  • #public_encrypt(string) ⇒ String

    Returns:

    • (String)
  • #public_encrypt(string, padding) ⇒ String

    Returns:

    • (String) 


386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
 
# File 'ossl_pkey_rsa.c', line 386

static VALUE
ossl_rsa_public_encrypt(int argc, VALUE *argv, VALUE self)
{
    EVP_PKEY *pkey;
    int buf_len, pad;
    VALUE str, buffer, padding;

    GetPKeyRSA(self, pkey);
    rb_scan_args(argc, argv, "11", &buffer, &padding);
    pad = (argc == 1) ? RSA_PKCS1_PADDING : NUM2INT(padding);
    StringValue(buffer);
    str = rb_str_new(0, ossl_rsa_buf_size(pkey));
    buf_len = RSA_public_encrypt(RSTRING_LENINT(buffer), (unsigned char *)RSTRING_PTR(buffer),
				 (unsigned char *)RSTRING_PTR(str), pkey->pkey.rsa,
				 pad);
    if (buf_len < 0) ossl_raise(eRSAError, NULL);
    rb_str_set_len(str, buf_len);

    return str;
}