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68 lines
2.2 KiB
68 lines
2.2 KiB
.TH sshpk\-verify 1 "Jan 2016" sshpk "sshpk Commands" |
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.SH NAME |
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.PP |
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sshpk\-verify \- verify a signature on data using an SSH key |
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.SH SYNOPSYS |
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.PP |
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\fB\fCsshpk\-verify\fR \-i KEYPATH \-s SIGNATURE [OPTION...] |
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.SH DESCRIPTION |
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.PP |
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Takes in arbitrary bytes and a Base64\-encoded signature, and verifies that the |
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signature was produced by the private half of the given SSH public key. |
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.SH EXAMPLES |
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.PP |
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.RS |
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.nf |
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$ printf 'foo' | sshpk\-verify \-i ~/.ssh/id_ecdsa \-s MEUCIQCYp... |
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OK |
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$ printf 'foo' | sshpk\-verify \-i ~/.ssh/id_ecdsa \-s GARBAGE... |
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NOT OK |
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.fi |
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.RE |
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.SH EXIT STATUS |
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.TP |
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\fB\fC0\fR |
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Signature validates and matches the key. |
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.TP |
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\fB\fC1\fR |
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Signature is parseable and the correct length but does not match the key or |
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otherwise is invalid. |
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.TP |
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\fB\fC2\fR |
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The signature or key could not be parsed. |
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.TP |
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\fB\fC3\fR |
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Invalid commandline options were supplied. |
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.SH OPTIONS |
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.TP |
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\fB\fC\-v, \-\-verbose\fR |
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Print extra information about the key and signature to stderr when verifying. |
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.TP |
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\fB\fC\-i KEY, \-\-identity=KEY\fR |
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Select the key to be used for verification. \fB\fCKEY\fR must be a relative or |
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absolute filesystem path to the key file. Any format supported by the \fB\fCsshpk\fR |
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library is supported, including OpenSSH formats and standard PEM PKCS. |
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.TP |
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\fB\fC\-s BASE64, \-\-signature=BASE64\fR |
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Supplies the base64\-encoded signature to be verified. |
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.TP |
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\fB\fC\-f PATH, \-\-file=PATH\fR |
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Input file to verify instead of stdin. |
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.TP |
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\fB\fC\-H HASH, \-\-hash=HASH\fR |
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Set the hash algorithm to be used for signing. This should be one of \fB\fCsha1\fR, |
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\fB\fCsha256\fR or \fB\fCsha512\fR\&. Some key types may place restrictions on which hash |
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algorithms may be used (e.g. ED25519 keys can only use SHA\-512). |
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.TP |
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\fB\fC\-t FORMAT, \-\-format=FORMAT\fR |
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Choose the signature format to use, from \fB\fCasn1\fR, \fB\fCssh\fR or \fB\fCraw\fR (only for |
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ED25519 signatures). The \fB\fCasn1\fR format is the default, as it is the format |
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used with TLS and typically the standard in most non\-SSH libraries (e.g. |
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OpenSSL). The \fB\fCssh\fR format is used in the SSH protocol and by the ssh\-agent. |
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.SH SEE ALSO |
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.PP |
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.BR sshpk-sign (1) |
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.SH BUGS |
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.PP |
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Report bugs at Github |
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\[la]https://github.com/arekinath/node-sshpk/issues\[ra]
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