ASN1 · HackerTrans

hace 7 añosdiscuss

Try pasting your cert into https://lapo.it/asn1js/

You can see all the parts in the blob:

        OBJECT IDENTIFIER 1.2.840.10045.2.1 ecPublicKey (ANSI X9.62 public key type)
        SEQUENCE (6 elem)
          INTEGER 1
          SEQUENCE (2 elem)
            OBJECT IDENTIFIER 1.2.840.10045.1.1 prime-field (ANSI X9.62 field type)
            INTEGER (256 bit) 1157920892373161954235709850086879078532699846656405640394575840079088…
          SEQUENCE (2 elem)
            OCTET STRING (32 byte) 0000000000000000000000000000000000000000000000000000000000000000
            OCTET STRING (32 byte) 0000000000000000000000000000000000000000000000000000000000000007
          OCTET STRING (65 byte) 0479BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798483A…
          INTEGER (256 bit) 1157920892373161954235709850086879078528375642790749043826051631415181…
          INTEGER 1

This will help you understand the ASN.1 encoding of a cert: http://luca.ntop.org/Teaching/Appunti/asn1.html

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