Ħarsa ġenerali lejn iċ-ċavetta
| Tip ta’ ċavetta | ECDSA NIST P-256 |
|---|---|
| Isem l-algoritmu SSH | ecdsa-sha2-nistp256 |
| Appoġġ | OpenSSH 5.7 u aktar ġdid, PuTTY 0.68 u aktar ġdid |
| Format taċ-ċavetta privata | OpenSSH (openssh-key-v1), unencrypted |
| Marka diġitali | SHA256:c3RQHg8rtGbll5HRD5n/fzzG/emQj8j3ocJkFg9cBFk |
Ċavetta pubblika
Iċ-ċavetta pubblika fil-format authorized_keys. Żidha ma’ fajl allowed_signers biex tivverifika l-firma hawn taħt.
Niżżel → 180 bytes
ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOlQV3oGdfXKp/cAyqSqQxWkYg9x7efwdUisL7TEO8Ah+j4CBlLcmlE+RXvsFVd5sh24Vv7vcTr+ISaOPDT09r8= ch-j-ssh-example-06Ċavetta privata
Iċ-ċavetta privata mhux kriptata. Ippubblikata għall-provi biss: kulħadd jista’ jużaha.
Niżżel → 513 bytes
Uri
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAaAAAABNlY2RzYS
1zaGEyLW5pc3RwMjU2AAAACG5pc3RwMjU2AAAAQQTpUFd6BnX1yqf3AMqkqkMVpGIPce3n
8HVIrC+0xDvAIfo+AgZS3JpRPkV77BVXebIduFb+73E6/iEmjjw09Pa/AAAAsEqcg+VKnI
PlAAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOlQV3oGdfXKp/cA
yqSqQxWkYg9x7efwdUisL7TEO8Ah+j4CBlLcmlE+RXvsFVd5sh24Vv7vcTr+ISaOPDT09r
8AAAAgK4CeRQxgg9rr2N610xFdqWJOR4KzmMW76T/Iy7ySrkcAAAATY2gtai1zc2gtZXhh
bXBsZS0wNgECAwQF
-----END OPENSSH PRIVATE KEY-----
Firma ta’ test_1MB.bin
Firma SSH separata (SSHSIG, spazju tal-ismijiet "file") ta’ test_1MB.bin magħmula b’din iċ-ċavetta f’CH-J Tools. Issejvjaha bħala test_1MB.bin.sig ħdejn il-fajl ta’ prova.
Niżżel → 391 bytes
-----BEGIN SSH SIGNATURE-----
U1NIU0lHAAAAAQAAAGgAAAATZWNkc2Etc2hhMi1uaXN0cDI1NgAAAAhuaXN0cDI1NgAAAE
EE6VBXegZ19cqn9wDKpKpDFaRiD3Ht5/B1SKwvtMQ7wCH6PgIGUtyaUT5Fe+wVV3myHbhW
/u9xOv4hJo48NPT2vwAAAARmaWxlAAAAAAAAAAZzaGE1MTIAAABkAAAAE2VjZHNhLXNoYT
ItbmlzdHAyNTYAAABJAAAAIDSrYzxQVo7NKyWVeSPcPOP97L8WvbgcUX4lAVGDh0bIAAAA
IQDNabPy19rgKbqDcIHvN4t8QZHD2KHmmoOanVicZQZz5Q==
-----END SSH SIGNATURE-----
Revoka
Iċ-ċwievet SSH m’għandhomx ċertifikat ta’ revoka. Biex tirrevoka ċavetta, neħħiha minn authorized_keys jew niżżilha f’lista ta’ revoka taċ-ċwievet OpenSSH (KRL, maħluqa b’ssh-keygen -k) li s-server jaqra permezz ta’ RevokedKeys.
Ivverifika l-firma
Issejvja ċ-ċavetta pubblika u l-firma ħdejn test_1MB.bin, oħloq fajl allowed_signers u ħaddem ssh-keygen:
echo "example@ch-j $(cat id_ecdsa.pub)" > allowed_signers
ssh-keygen -Y verify -f allowed_signers -I example@ch-j -n file -s test_1MB.bin.sig < test_1MB.bin