pgpPktKeyV4_s Struct Reference

The version 4 format is similar to the version 3 format except for the absence of a validity period. More...

#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)

Definition at line 675 of file rpmpgp.h.

Field Documentation

pubkey_algo

uint8_t pgpPktKeyV4_s::pubkey_algo

public key algorithm.

Definition at line 678 of file rpmpgp.h.

time

pgpTime_t pgpPktKeyV4_s::time

time that the key was created.

Definition at line 677 of file rpmpgp.h.

version

uint8_t pgpPktKeyV4_s::version

version number (4).

Definition at line 676 of file rpmpgp.h.

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

• rpmpgp.h