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app: add compatibility warnings

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Try to warn users in console output about possible certificate issues.

fixes: https://github.com/gregtwallace/apc-p15-tool/issues/20
This commit is contained in:
Greg T. Wallace 2025-06-23 19:55:09 -04:00
commit b821002e85
5 changed files with 152 additions and 19 deletions
pkg/pkcs15
keyid.go

12
pkg/pkcs15/keyid.go
View file

@ -15,7 +15,7 @@ func (p15 *pkcs15KeyCert) keyId() []byte {
// SHA-1 Hash
hasher := sha1.New()
_, err := hasher.Write(p15.cert.RawSubjectPublicKeyInfo)
_, err := hasher.Write(p15.Cert.RawSubjectPublicKeyInfo)
if err != nil {
panic(err)
}
@ -46,9 +46,9 @@ func (p15 *pkcs15KeyCert) keyIdInt3() []byte {
// object to hash
hashObj := asn1obj.Sequence([][]byte{
// issuerDistinguishedName
p15.cert.RawIssuer,
p15.Cert.RawIssuer,
// serialNumber
asn1obj.Integer(p15.cert.SerialNumber),
asn1obj.Integer(p15.Cert.SerialNumber),
})
// SHA-1 Hash
@ -74,7 +74,7 @@ func (p15 *pkcs15KeyCert) keyIdInt6() []byte {
// SHA-1 Hash
hasher := sha1.New()
_, err := hasher.Write(p15.cert.RawIssuer)
_, err := hasher.Write(p15.Cert.RawIssuer)
if err != nil {
panic(err)
}
@ -95,7 +95,7 @@ func (p15 *pkcs15KeyCert) keyIdInt7() []byte {
// SHA-1 Hash
hasher := sha1.New()
_, err := hasher.Write(p15.cert.RawSubject)
_, err := hasher.Write(p15.Cert.RawSubject)
if err != nil {
panic(err)
}
@ -168,7 +168,7 @@ func (p15 *pkcs15KeyCert) keyIdInt9() []byte {
// to be ~ 1 hour ish BEFORE the cert was even created. Key would also
// obviously have to be created prior to the cert creation.
time := make([]byte, 4)
binary.BigEndian.PutUint32(time, uint32(p15.cert.NotBefore.Unix()))
binary.BigEndian.PutUint32(time, uint32(p15.Cert.NotBefore.Unix()))
publicKeyPacket = append(publicKeyPacket, time...)
// the next part is key type specific