Method: OpenSSL::ASN1.decode

Defined in:
ossl_asn1.c

.OpenSSL::ASN1.decode(der) ⇒ ASN1Data

Decodes a BER- or DER-encoded value and creates an ASN1Data instance. der may be a String or any object that features a .to_der method transforming it into a BER-/DER-encoded String+

Example

der = File.binread('asn1data')
asn1 = OpenSSL::ASN1.decode(der)

Returns:



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# File 'ossl_asn1.c', line 981

static VALUE
ossl_asn1_decode(VALUE self, VALUE obj)
{
    VALUE ret;
    unsigned char *p;
    VALUE tmp;
    long len, read = 0, offset = 0;

    obj = ossl_to_der_if_possible(obj);
    tmp = rb_str_new4(StringValue(obj));
    p = (unsigned char *)RSTRING_PTR(tmp);
    len = RSTRING_LEN(tmp);
    ret = ossl_asn1_decode0(&p, len, &offset, 0, 0, &read);
    RB_GC_GUARD(tmp);
    int_ossl_decode_sanity_check(len, read, offset);
    return ret;
}