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added two additional non packward compatible changes for future version 0.7, and improvements of verifications of certificate signatures

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This commit is contained in:
csoler 2017-11-19 18:21:56 +01:00
parent 7472f78223
commit b4fdd4e0d0
8 changed files with 274 additions and 69 deletions
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44
libretroshare/src/pgp/pgpkeyutil.h
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@ -41,6 +41,46 @@
#include <stdint.h>
#include <string>
static const uint8_t PGP_PACKET_TAG_HASH_ALGORITHM_UNKNOWN = 0 ;
static const uint8_t PGP_PACKET_TAG_HASH_ALGORITHM_MD5 = 1 ;
static const uint8_t PGP_PACKET_TAG_HASH_ALGORITHM_SHA1 = 2 ;
static const uint8_t PGP_PACKET_TAG_HASH_ALGORITHM_SHA256 = 8 ;
static const uint8_t PGP_PACKET_TAG_HASH_ALGORITHM_SHA512 = 10 ;
static const uint8_t PGP_PACKET_TAG_PUBLIC_KEY_ALGORITHM_UNKNOWN = 0 ;
static const uint8_t PGP_PACKET_TAG_PUBLIC_KEY_ALGORITHM_RSA_ES = 1 ;
static const uint8_t PGP_PACKET_TAG_PUBLIC_KEY_ALGORITHM_RSA_E = 2 ;
static const uint8_t PGP_PACKET_TAG_PUBLIC_KEY_ALGORITHM_RSA_S = 3 ;
static const uint8_t PGP_PACKET_TAG_PUBLIC_KEY_ALGORITHM_DSA = 17 ;
static const uint8_t PGP_PACKET_TAG_SIGNATURE_VERSION_UNKNOWN = 0 ;
static const uint8_t PGP_PACKET_TAG_SIGNATURE_VERSION_V3 = 3 ;
static const uint8_t PGP_PACKET_TAG_SIGNATURE_VERSION_V4 = 4 ;
static const uint8_t PGP_PACKET_TAG_SIGNATURE_TYPE_UNKNOWN = 0xff ;
static const uint8_t PGP_PACKET_TAG_SIGNATURE_TYPE_BINARY_DOCUMENT = 0x00 ;
static const uint8_t PGP_PACKET_TAG_SIGNATURE_TYPE_CANONICAL_TEXT = 0x01 ;
static const uint8_t PGP_PACKET_TAG_SIGNATURE_TYPE_STANDALONE_SIG = 0x02 ;
// All other consts for signature types not used, so not defines.
class PGPSignatureInfo
{
public:
PGPSignatureInfo() :
signature_version (PGP_PACKET_TAG_SIGNATURE_VERSION_UNKNOWN),
signature_type (PGP_PACKET_TAG_SIGNATURE_TYPE_UNKNOWN),
issuer (0),
public_key_algorithm(PGP_PACKET_TAG_PUBLIC_KEY_ALGORITHM_UNKNOWN),
hash_algorithm (PGP_PACKET_TAG_HASH_ALGORITHM_UNKNOWN)
{}
uint8_t signature_version ;
uint8_t signature_type ;
uint64_t issuer ;
uint8_t public_key_algorithm ;
uint8_t hash_algorithm ;
};
// This class handles GPG keys. For now we only clean them from signatures, but
// in the future, we might cache them to avoid unnecessary calls to gpgme.
//
@ -66,7 +106,7 @@ class PGPKeyManagement
//
static uint32_t compute24bitsCRC(unsigned char *data,size_t len) ;
static bool parseSignature(const unsigned char *signature, size_t sign_len, uint64_t &issuer) ;
static bool parseSignature(const unsigned char *signature, size_t sign_len, PGPSignatureInfo& info) ;
};
// This class handles the parsing of PGP packet headers under various (old and new) formats.
@ -74,6 +114,8 @@ class PGPKeyManagement
class PGPKeyParser
{
public:
// These constants correspond to packet tags from RFC4880
static const uint8_t PGP_PACKET_TAG_PUBLIC_KEY = 6 ;
static const uint8_t PGP_PACKET_TAG_USER_ID = 13 ;
static const uint8_t PGP_PACKET_TAG_SIGNATURE = 2 ;