rpm 4.19.1.1
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pgpPktKeyV4_s Struct Reference

#include <rpmpgp.h>

Data Fields

uint8_t version
 
pgpTime_t time
 
uint8_t pubkey_algo
 

Detailed Description

The version 4 format is similar to the version 3 format except for the absence of a validity period. This has been moved to the signature packet. In addition, fingerprints of version 4 keys are calculated differently from version 3 keys, as described in section "Enhanced Key Formats."

A version 4 packet contains:

  • A one-octet version number (4).
  • A four-octet number denoting the time that the key was created.
  • A one-octet number denoting the public key algorithm of this key
  • A series of multi-precision integers comprising the key material. This algorithm-specific portion is:

    Algorithm Specific Fields for RSA public keys:

    • multiprecision integer (MPI) of RSA public modulus n;
    • MPI of RSA public encryption exponent e.

    Algorithm Specific Fields for DSA public keys:

    • MPI of DSA prime p;
    • MPI of DSA group order q (q is a prime divisor of p-1);
    • MPI of DSA group generator g;
    • MPI of DSA public key value y (= g**x where x is secret).

    Algorithm Specific Fields for Elgamal public keys:

    • MPI of Elgamal prime p;
    • MPI of Elgamal group generator g;
    • MPI of Elgamal public key value y (= g**x where x is secret).

    Algorithm Specific Fields for EdDSA public keys:

    • variable length field containing a curve OID
    • MPI of an EC point representing a public key Q (a compressed point prefixed with the octet 0x40)

Field Documentation

◆ pubkey_algo

uint8_t pgpPktKeyV4_s::pubkey_algo

public key algorithm.

◆ time

pgpTime_t pgpPktKeyV4_s::time

time that the key was created.

◆ version

uint8_t pgpPktKeyV4_s::version

version number (4).


The documentation for this struct was generated from the following file: