Comments (4)
ahall
commented on August 18, 2024
After turning logging on in NGit we get more information. It's also interesting that AES-256 cipers are not available.
I'm running on mono 2.6.7, would be nice if someone goes ahead and tests this on mono 2.8:
ahall@titanium:~/Projects/testssh/testssh/bin/Debug$ mono --debug testssh.exe
Connecting to somehost port 22
Connection established
Remote version string: SSH-2.0-OpenSSH_5.3p1 Debian-3ubuntu3
Local version string: SSH-2.0-JSCH-0.1.43
CheckCiphers: aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256
aes256-ctr is not available.
aes192-ctr is not available.
aes128-ctr is not available.
aes256-cbc is not available.
aes192-cbc is not available.
aes128-cbc is not available.
3des-ctr is not available.
SSH_MSG_KEXINIT sent
SSH_MSG_KEXINIT received
kex: server->client 3des-cbc hmac-md5 none
kex: client->server 3des-cbc hmac-md5 none
SSH_MSG_KEXDH_INIT sent
expecting SSH_MSG_KEXDH_REPLY
ssh_rsa_verify: signature True
Permanently added 'somehost' (RSA) to the list of known hosts.
SSH_MSG_NEWKEYS sent
SSH_MSG_NEWKEYS received
SSH_MSG_SERVICE_REQUEST sent
SSH_MSG_SERVICE_ACCEPT received
Authentications that can continue: publickey,keyboard-interactive,password
Next authentication method: publickey
Authentications that can continue: password
Next authentication method: password
Disconnecting from somehost port 22
Unhandled Exception: NSch.JSchException: Auth fail
at NSch.Session.Connect (Int32 connectTimeout) [0x00000] in <filename unknown>:0▷
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pvginkel
commented on August 18, 2024
I'm seeing this error too. The problem seems to be that the RSA signature returned by SHA1withRSASignature.Sign() is incorrect. The SSH server outputs the following message:
Jul 9 15:04:34 titan sshd[12778]: error: RSA_public_decrypt failed: error:0407006A:lib(4):func(112):reason(106)
openssl errstr gives:
error:0407006A:rsa routines:RSA_padding_check_PKCS1_type_1:block type is not 01
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alanmcgovern
commented on August 18, 2024
I believe this issue was fixed several months ago. We had hardcoded the value we expected the ssh key public exponent to have. All keys which did not use that hardcoded public exponent failed with errors like this. I'd recommend trying the latest from git and re-open this if the problem is still there.
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pvginkel
commented on August 18, 2024
I cannot thank you enough for solving this issue. Works perfectly.
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Related Issues (20)
- Cached RmCommand unavailable
- Clone, Fetch, Push documentation / examples HOT 1
- Basic authentication when cloning with http/https
- Ngit File locks HOT 12
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- Ngit CredentialProvider - Keypair HOT 1
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- Exception / hang on Mono.Security Diffie-Helman key generation for SSH Transport
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- IsClean() HOT 1
- Diff is duplicated
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- Code is outdated HOT 7
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- Port to NetStandard 2.0
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