479 lines
15 KiB
Go
479 lines
15 KiB
Go
package ssh
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import (
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"bytes"
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"crypto/dsa"
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"crypto/ecdsa"
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"crypto/rsa"
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"fmt"
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"testing"
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"github.com/hashicorp/packer/common/uuid"
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"golang.org/x/crypto/ed25519"
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gossh "golang.org/x/crypto/ssh"
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)
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const (
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pemRsa1024 = `-----BEGIN RSA PRIVATE KEY-----
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MIICWwIBAAKBgQDJEMFPpTBiWNDb3qEIPTSeEnIP8FZdBpG8njOrclcMoQQNhzZ+
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4uz37tqtHMp36Z7LB4/+85NN6epNXO+ekyZIHswiyBcJC2sT3KuH7nG1BESOooPY
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DfeCSM+CJT9GDIhy9nUXSsJjrceEyh/B5DjEtIbS0XfcRelrNTJodCmPJwIDAQAB
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AoGAK66GMOV0c4lUJtBhL8cMTWM4gJn4SVGKC+5az16R5t58YOwFPN/UF7E+tOlS
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W2bX5sgH0p3cXMr66j/Mlyjk4deLg7trDavulIP93MyVO2SUJ0cstQ0ZmRz2oGwx
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Gow+hD75Cet7uvepdmG4DKHJe8D/I72rtP1WKuZyd0vP6WECQQDua6wWlyEdIimx
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XoGWUvmywACWPnQmBnyHG7x5hxMjijQoQZu60zRxSU9I5q08BerTsvbTc+xLnDVv
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mFzlcjT/AkEA1+P7lcvViZeNKoDB1Qt+VV+pkcqL5aoRwdnLA51SyFJ9tXkxeZwA
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LOof3xtoRGhCld7ixi3kF5aZsafAJOZd2QJAH8rFyMFgTgU3MAqdFxF7cGV/7ojn
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bgahZlbBfCcR20Rbjh6piHEPZifTZbI02XMkjBQqK6oikTaEPZxAjuv6uwJANczu
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yWm+kUdfOpRTuY/fr87jJx3etyEmw7ROz1vJYXqNMUg+eBvUP10pDCR8W2/QCCE/
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Sjvtd6NkMc2oKInwIQJAFZ1xJte0EaQsXaCIoZwHrQJbK1dd5l1xTAzz51voAcKH
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2K23xgx4I+/eam2enjFa7wXLZFoW0xg/51xsaIjnrA==
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-----END RSA PRIVATE KEY-----
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`
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pemRsa2048 = `-----BEGIN RSA PRIVATE KEY-----
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MIIEowIBAAKCAQEA/ZPazeRmBapF01gzHXtJGpu0S936xHY+pOrIyIk6lEE06paf
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q5gh6BCuiN/60Keed5Nz+Es4dPGc73mql9pd7N0HOoEc1IQjZzJVqWOy3E55oWbz
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rXr1qbmMjw8bGHalZsVBov1UhyB6f2bKi88fGkThJi9HZ+Dc3Jr87eW+whS4D0bI
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JJe5dkY0VhDqB0YVEk299TxlAiDkeXD1EcMZrD/yHsusapwlXL2WHWmCgbPpbeYW
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YJhD1bScChYmf41iiInBwFymG7kz4bPsup7wCBXpcLJplY1iuXdtVVujNLDbJwlb
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Xi2oBm3WizPjYcUthvMlqOieuy6Z4KzyJd7EnQIDAQABAoIBAByZ8LQIbvl0myub
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ZyiMH1LA/TURdJd0PtybHsp/r/vI3w8WrivMnQZv2z/VA5VFUrpqB0qaMWP/XJQm
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RPebybxNseMHbRkLTnL1WnQgqqvurglmc1W96LecFh6MtaGswDs3RI/9wur63tY/
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4dijI/7yhfKoooU097RqRt0ObNW3BxGwNKUraMLKEZjtohv1cZBeRqzGZuui351E
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YsG1jt23/3OP3Acfd1xpzoi+daadxl9JTr02kE7lMjfq32quhTdzuNZP84sQsaV+
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RXLNEoiSufjzy3nHTEpG6QaEWQc4gszCIBVRabxr7LtIOqJn2KmXxtOyFE52AJJj
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ls3ifAECgYEA/9K+5oHdZBizWWUvNzQWXrdHUtVavCwjj+0v+yRFZSoAhKtVmLYl
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8R4NeG6NCIOoJsqmGVpgtCyPndR4PQ6yr4Jt1FJorjsNw21eYrjOVG+y9Z0DkCwJ
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uCRVUeqB42jLu7v9r1V3OBQdKLN6VxO4np05KEZyv1LOGGt0XC8NCykCgYEA/cC2
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NR7Y4Z5OjCc2GHMQNrVZ2HTDDir71RjcIIEmsIQ5/AMAELFLCSqzD73tJ87T5jPi
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aWeOpIcnK78jMvIIsbV0BXaDsjtlvCdQui2AoX63FuK4q4E+vwe5Q/TqY2nDh2io
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mGHfeXECyUx4gxIede2XEO9zYQ0lP8gxnjmLkFUCgYBO8LolqQcm/xRAzp9eOn14
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prekkN+Z10j1/avjpFKhn+9fAPu9zt8wYySm9/4fFXlK1xegFSpoDqQWgNzFgoaS
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7/1yGifhM6nQlywb7IkGtx0S+2uBDoXFQ7jsOR/xi4HqoVzrwMS0EkjZKWDkA9rh
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XwSnL+3yqduc33OdiotM2QKBgCgNCrVHsSOrQOqOJdOmFaEM7qljhIXv8t+nlNbs
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i5bAyAYm0xPPZ/CCdNC/QXdPBdMHzWylk7YUPvKAsKWR3h1ubmmOUysGhQA1lGBO
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XkcfIPbTwiIPvD+akHtRZM1cHCh7NGEY0ZTxaWcsUrkdWwFyBq39nVBsKrzudCZt
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HsIhAoGBAMv3erZQawzIgX9nOUHB2UJl8pS+LZSNMlYvFoMHKI2hLq0g/VxUlnsh
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Jzw9+fTLMVFdY+F3ydO6qQFd8wlfov7deyscdoSj8R5gjGKJsarBs+YVdFde2oLG
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gkFsXmbmc2boyqGg51CbAX34VJOhGQKhWgKCWqDGmoYXafmyiZc+
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-----END RSA PRIVATE KEY-----
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`
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pemOpenSshRsa1024 = `-----BEGIN OPENSSH PRIVATE KEY-----
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b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAlwAAAAdzc2gtcn
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NhAAAAAwEAAQAAAIEAzzknaHV741775aJOPacDpd2SiDpIDYmm7/w2sgY8lrinSakfLIVk
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1qn0IBRLNOzMxoF/pvIgGQXS51xvE1vB3QK8L+8vJwH06DuOXPP1WgVoDTU03gGvBJ7MNF
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5HcQYvBiIaU5XxG8l0OZO88B9RFhPP9r0XrYxAlSjuk9KKlEcAAAIYLQ46zy0OOs8AAAAH
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c3NoLXJzYQAAAIEAzzknaHV741775aJOPacDpd2SiDpIDYmm7/w2sgY8lrinSakfLIVk1q
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n0IBRLNOzMxoF/pvIgGQXS51xvE1vB3QK8L+8vJwH06DuOXPP1WgVoDTU03gGvBJ7MNF5H
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cQYvBiIaU5XxG8l0OZO88B9RFhPP9r0XrYxAlSjuk9KKlEcAAAADAQABAAAAgQDJ9Jq6jF
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08P/LhXug/38iHW0UW7S4Ru4jttHGd2MQt5DJtcJzIKA0ZxLL+nKibIPmFsOm2y5yKpolg
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IE7EoBVzTeg0LedbRayc0Kc5tY7PEz0Shi9ABIMYbNo2L2pNmsq9ns0xA8ur3OugfKHsH8
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XjJ1rdHsyLjoMx2ADfLY0xkQAAAEAvyrgW4jswENdErbF0rOdP+Y73B/8rxBaY/QBE2qtG
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oUp7bpOtUAH2Ip7RjXOX4xTAt4n2QeHBSfX7gfXRjmY6AAAAQQDmYlgSWtTYLV9VZSScLU
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OG+GkhQxYqkKN/N9LSpTP4Pwh81KpMp40yvIlufmKLgGihWVxUDzRap3aoR7PqIvHPAAAA
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QQDmQ47VwclxiVn5tVAht/Lk2ZVa7rSjeFlXAkAWZkUAiHboaH8IfW9W4gYV7o2BqJO11L
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0vi+vCq+le45F416wJAAAAImNocmlzQHBvZXRhc3Rlci5jb3JwLm11dHVhbGluay5uZXQ=
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-----END OPENSSH PRIVATE KEY-----
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`
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pemOpenSshRsa2048 = `-----BEGIN OPENSSH PRIVATE KEY-----
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b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAABFwAAAAdzc2gtcn
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NhAAAAAwEAAQAAAQEAxWfWNu0i8sbmwPqTUfKSeXOSt/fLMuqucn9KYU7rJ+83trznRhAn
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AHQzKgcSU8PBgkax+PDEUexYUB9gZApNI6K/2twVDYh3Hgwx7EjXf05rji7bQk6TFyKEp4
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n348CWAdK8iFmNUutSpJLy7GciyMPLu3BK+EsXpsnuPpIm184hEFOiADZyHTGeUgvsKOAc
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G7u5hBS3kty8LRZmL+pihbktFwGC4D5bapCcTaF2++zkUy4JKcVE5/2JfK1Ya6D0ATczjz
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1b6+r7j2RUg1mXfK6AwMHEcamzhgeuM9RdrPtMdhZI09LCJzjmXc9pzlGu1HCZzh3rJ3hd
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8PVmlAd3VQAAA+A9hesQPYXrEAAAAAdzc2gtcnNhAAABAQDFZ9Y27SLyxubA+pNR8pJ5c5
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K398sy6q5yf0phTusn7ze2vOdGECcAdDMqBxJTw8GCRrH48MRR7FhQH2BkCk0jor/a3BUN
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iHceDDHsSNd/TmuOLttCTpMXIoSniffjwJYB0ryIWY1S61KkkvLsZyLIw8u7cEr4Sxemye
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4+kibXziEQU6IANnIdMZ5SC+wo4Bwbu7mEFLeS3LwtFmYv6mKFuS0XAYLgPltqkJxNoXb7
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7ORTLgkpxUTn/Yl8rVhroPQBNzOPPVvr6vuPZFSDWZd8roDAwcRxqbOGB64z1F2s+0x2Fk
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jT0sInOOZdz2nOUa7UcJnOHesneF3w9WaUB3dVAAAAAwEAAQAAAQEAvA8Z8iWjX6nA9yM/
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6ZevluhVY9E60XzlR8qgL2ehet/YMcxwfzywCyyn+WfXO9mHpfZ3YfLs9Ca2U04w4900c7
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h+EaAMpmHVKNjxTmpucadhq4hT9S0pz6ZgvcMgVuaHgaEjXroBencYuhQMPM5cQurUUfK+
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WSAgnhJNV2qgeoEGgfDZoL1HkItckEZwIzmx4lfMVAuaeqVq5tJNcdv5ukNHpnIYl6fgDp
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WGUn/9F8sSHO7P7kGl67IZIsAz+1wW+6pFaVgxbZJ3baPiURtRp+nRSaKLYZSMph6MAiTu
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YC8EEVqi3X4m/ZHy+BkphfzR24ouwpt1Vv9QOAPzXXsPwQAAAIEAvmA+yiBdzsJplCifTA
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KljE+KpSuvLPRPTb7MGsBO0LIvxrkXOMCXZF4I2VP1zSUH+SDPPc6JeR1Q8liMqPC3Md6c
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CIkHfVFBAZL709d0ZtTiir1BipG/l5vIpBnepNX/bWIszIOMzPF2at0WF1lFe6THWujuE8
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Xjp2AJSFZlUjAAAACBAOMxr6FN38VwRC1nrDcZyo4TjWVhAdk4p3AkdNJhFSiKS/x5/yo2
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K1majzcKbrR8+fEPTVWGszAg+AXQdsOq17q+DMenfrBckQ9ZHr3upSZAaGN+keNwge/Kaj
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yOvYiKdYFXmAulQZCPQsDNp7e7Z1dTqxi5IlhUgDPzzO0vRGjNAAAAgQDeb0Ulv7fkYAav
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tZ+D0LohGjlGFwTeLdwErcVnq9wGyupdeNhlTXZXxRvF+yEt4FCV9UEUnRX75CAnpk2hT2
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D5uYMyixAEfSeIo59Ln27MmAy0alR3UnT7JnLEZRh4dnvFbSSMJ1rHxf8Eg6YFJmpH65fX
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exrJE+p69wgRVndoqQAAACJjaHJpc0Bwb2V0YXN0ZXIuY29ycC5tdXR1YWxpbmsubmV0AQ
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IDBAUGBw==
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-----END OPENSSH PRIVATE KEY-----
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`
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pemDsa = `-----BEGIN DSA PRIVATE KEY-----
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MIIBuwIBAAKBgQDH/T+IkpbdA9nUM7O4MMRoeS0bn7iXWs63Amo2fsIyJPxDvjjF
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5HZBH5Rq045TFCCWHjymwiYof+wvwUMZIUH++ABTrKzes/r5qG5jXp42pFWf6nTI
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zHwttdjvNiXr+AgreXOrJKhjv6Ga3hq8MNcXMa9xFsIB83EZNMBPxbj0nwIVAJQW
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1eR4Uf8/8haQb4HkTsoH+R5/AoGBAK9FV5LIZxY1TeNsD5eXoqpTqCy1WROMggSG
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VZ4yN0rrKCtLd8am61m/L8VCMUWiO3IJQdq3yWBTEBbsShL/toau9beUdTl6rdB8
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wcEcNgtZnhypQR58HlmgUFWC45rW37hW4AUJuMDgLxgqSVuoF1pDcHrHSi/fZwgp
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7t0MKH2SAoGAJfUcLrXg5ZR8jbpZs4L/ubibUn+y35y+33aos07auMW1MesuNTcZ
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Ch42nbH2wKnbjk8eDxHdHLHzzOLGgYVMpUuBeuc7G5Q94rM/Z0I8HGQ6mvIkuFyp
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58Unu5yu33GsNUgGEHmriiMGezXNXGNH/72PmTXuyxEMSrad23c6NZoCFAtIqbal
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4tGCfnnmWU514A7ZzEKj
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-----END DSA PRIVATE KEY-----
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`
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pemEcdsa384 = `-----BEGIN EC PRIVATE KEY-----
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MIGkAgEBBDAjuEIlmFyhGjFtJoAwD420FuPAjIknN3YwDZL4cfMFpB4YAK+7QVLs
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coAJ/ADuT7OgBwYFK4EEACKhZANiAASeXKyBr2prr4f4aOsM4dtVikYOUIL3yYnb
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GFOy7yHmauCnkIB48paXpvRE5m53Q8zgu7vkz/z9tcMBcC0GzpY3Sef37fmgTUuZ
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AJuJp36DMBdQel+j51TcQ79sizxCayg=
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-----END EC PRIVATE KEY-----
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`
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pemEcdsa521 = `-----BEGIN EC PRIVATE KEY-----
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MIHcAgEBBEIBVCiwcf/did2vCIu3aMe7OeTD35PULm0hqmfkAK9OKIosi/DjOFfA
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8h99rVNPaf+Cx/JNmEzR4bZNnYDyilSRCr+gBwYFK4EEACOhgYkDgYYABABHBMLP
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XbQoRF31ZGIeUj9jt9GqKES1dLBtGDEQSiiZFouL4tEIW7NfIZDpOIkA0khNcO8N
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xH6eylg0XOgcr01GRwCjY5VOapOahtn63SpajPGeKk+46F2dULIwrov9tWQuYNa3
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P50N8j3rx6fAdgyDENOcCJlfNdNcySvkH4bgL1xcsw==
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-----END EC PRIVATE KEY-----
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`
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pemOpenSshEd25519 = `-----BEGIN OPENSSH PRIVATE KEY-----
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b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
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QyNTUxOQAAACAUftPhZQN17kAlThiiWJEgJvddm/pUhHvgrHUtpuYFOQAAAKjN+UhDzflI
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QwAAAAtzc2gtZWQyNTUxOQAAACAUftPhZQN17kAlThiiWJEgJvddm/pUhHvgrHUtpuYFOQ
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AAAEANXlEZdNU03RMmj77O2ojWh06Hbj8/qQ++H5wkt688NBR+0+FlA3XuQCVOGKJYkSAm
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912b+lSEe+CsdS2m5gU5AAAAImNocmlzQHBvZXRhc3Rlci5jb3JwLm11dHVhbGluay5uZX
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QBAgM=
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-----END OPENSSH PRIVATE KEY-----
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`
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)
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func TestNewKeyPair_Default(t *testing.T) {
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kp, err := NewKeyPair(CreateKeyPairConfig{})
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if err != nil {
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t.Fatal(err.Error())
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}
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err = verifyEcdsaKeyPair(kp, expectedData{
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bits: 521,
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})
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if err != nil {
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t.Fatal(err.Error())
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}
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}
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func TestNewKeyPair_ECDSA_Default(t *testing.T) {
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kp, err := NewKeyPair(CreateKeyPairConfig{
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Type: Ecdsa,
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})
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if err != nil {
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t.Fatal(err.Error())
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}
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err = verifyEcdsaKeyPair(kp, expectedData{
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bits: 521,
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})
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if err != nil {
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t.Fatal(err.Error())
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}
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}
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func TestNewKeyPair_ECDSA_Positive(t *testing.T) {
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for _, bits := range []int{521, 384, 256} {
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config := CreateKeyPairConfig{
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Type: Ecdsa,
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Bits: bits,
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Comment: uuid.TimeOrderedUUID(),
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}
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kp, err := NewKeyPair(config)
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if err != nil {
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t.Fatal(err.Error())
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}
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err = verifyEcdsaKeyPair(kp, expectedData{
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bits: bits,
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comment: config.Comment,
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})
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if err != nil {
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t.Fatal(err.Error())
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}
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}
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}
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func TestNewKeyPair_ECDSA_Negative(t *testing.T) {
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for _, bits := range []int{224, 1, 2, 3} {
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_, err := NewKeyPair(CreateKeyPairConfig{
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Type: Ecdsa,
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Bits: bits,
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})
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if err == nil {
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t.Fatalf("expected key pair generation to fail for %d bits", bits)
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}
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}
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}
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func TestNewKeyPair_RSA_Positive(t *testing.T) {
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for _, bits := range []int{4096, 2048} {
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config := CreateKeyPairConfig{
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Type: Rsa,
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Bits: bits,
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Comment: uuid.TimeOrderedUUID(),
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}
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kp, err := NewKeyPair(config)
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if err != nil {
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t.Fatal(err.Error())
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}
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err = verifyRsaKeyPair(kp, expectedData{
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bits: config.Bits,
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comment: config.Comment,
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})
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if err != nil {
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t.Fatal(err.Error())
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}
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}
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}
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func TestKeyPairFromPrivateKey(t *testing.T) {
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m := map[string]fromPrivateExpectedData{
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pemRsa1024: {
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t: Rsa,
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d: expectedData{
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bits: 1024,
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comment: uuid.TimeOrderedUUID(),
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},
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},
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pemRsa2048: {
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t: Rsa,
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d: expectedData{
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bits: 2048,
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comment: uuid.TimeOrderedUUID(),
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},
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},
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pemOpenSshRsa1024: {
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t: Rsa,
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d: expectedData{
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bits: 1024,
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comment: uuid.TimeOrderedUUID(),
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},
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},
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pemOpenSshRsa2048: {
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t: Rsa,
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d: expectedData{
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bits: 2048,
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comment: uuid.TimeOrderedUUID(),
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},
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},
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pemDsa: {
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t: Dsa,
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d: expectedData{
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bits: 1024,
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comment: uuid.TimeOrderedUUID(),
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},
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},
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pemEcdsa384: {
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t: Ecdsa,
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d: expectedData{
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bits: 384,
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comment: uuid.TimeOrderedUUID(),
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},
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},
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pemEcdsa521: {
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t: Ecdsa,
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d: expectedData{
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bits: 521,
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comment: uuid.TimeOrderedUUID(),
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},
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},
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pemOpenSshEd25519: {
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t: Ed25519,
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d: expectedData{
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bits: 256,
|
|
comment: uuid.TimeOrderedUUID(),
|
|
},
|
|
},
|
|
}
|
|
|
|
for rawPrivateKey, expected := range m {
|
|
kp, err := KeyPairFromPrivateKey(FromPrivateKeyConfig{
|
|
RawPrivateKeyPemBlock: []byte(rawPrivateKey),
|
|
Comment: expected.d.comment,
|
|
})
|
|
if err != nil {
|
|
t.Fatal(err.Error())
|
|
}
|
|
|
|
switch expected.t {
|
|
case Dsa:
|
|
err = verifyDsaKeyPair(kp, expected)
|
|
case Ecdsa:
|
|
err = verifyEcdsaKeyPair(kp, expected.d)
|
|
case Ed25519:
|
|
err = verifyEd25519KeyPair(kp, expected)
|
|
case Rsa:
|
|
err = verifyRsaKeyPair(kp, expected.d)
|
|
default:
|
|
err = fmt.Errorf("unexected SSH key pair type %s", expected.t.String())
|
|
}
|
|
if err != nil {
|
|
t.Fatal(err.Error())
|
|
}
|
|
}
|
|
}
|
|
|
|
type fromPrivateExpectedData struct {
|
|
t KeyPairType
|
|
d expectedData
|
|
}
|
|
|
|
type expectedData struct {
|
|
bits int
|
|
comment string
|
|
}
|
|
|
|
func verifyEcdsaKeyPair(kp KeyPair, e expectedData) error {
|
|
privateKey, err := gossh.ParseRawPrivateKey(kp.PrivateKeyPemBlock)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
pk, ok := privateKey.(*ecdsa.PrivateKey)
|
|
if !ok {
|
|
return fmt.Errorf("private key should be *ecdsa.PrivateKey")
|
|
}
|
|
|
|
if pk.Curve.Params().BitSize != e.bits {
|
|
return fmt.Errorf("bit size should be %d - got %d", e.bits, pk.Curve.Params().BitSize)
|
|
}
|
|
|
|
publicKey, err := gossh.NewPublicKey(&pk.PublicKey)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if kp.Comment != e.comment {
|
|
return fmt.Errorf("key pair comment should be:\n'%s'\nGot:\n'%s'",
|
|
e.comment, kp.Comment)
|
|
}
|
|
|
|
expectedBytes := bytes.TrimSuffix(gossh.MarshalAuthorizedKey(publicKey), []byte("\n"))
|
|
if len(e.comment) > 0 {
|
|
expectedBytes = append(expectedBytes, ' ')
|
|
expectedBytes = append(expectedBytes, e.comment...)
|
|
}
|
|
|
|
if !bytes.Equal(expectedBytes, kp.PublicKeyAuthorizedKeysLine) {
|
|
return fmt.Errorf("authorized keys line should be:\n'%s'\nGot:\n'%s'",
|
|
string(expectedBytes), string(kp.PublicKeyAuthorizedKeysLine))
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func verifyRsaKeyPair(kp KeyPair, e expectedData) error {
|
|
privateKey, err := gossh.ParseRawPrivateKey(kp.PrivateKeyPemBlock)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
pk, ok := privateKey.(*rsa.PrivateKey)
|
|
if !ok {
|
|
return fmt.Errorf("private key should be *rsa.PrivateKey")
|
|
}
|
|
|
|
if pk.N.BitLen() != e.bits {
|
|
return fmt.Errorf("bit size should be %d - got %d", e.bits, pk.N.BitLen())
|
|
}
|
|
|
|
publicKey, err := gossh.NewPublicKey(&pk.PublicKey)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if kp.Comment != e.comment {
|
|
return fmt.Errorf("key pair comment should be:\n'%s'\nGot:\n'%s'",
|
|
e.comment, kp.Comment)
|
|
}
|
|
|
|
expectedBytes := bytes.TrimSuffix(gossh.MarshalAuthorizedKey(publicKey), []byte("\n"))
|
|
if len(e.comment) > 0 {
|
|
expectedBytes = append(expectedBytes, ' ')
|
|
expectedBytes = append(expectedBytes, e.comment...)
|
|
}
|
|
|
|
if !bytes.Equal(expectedBytes, kp.PublicKeyAuthorizedKeysLine) {
|
|
return fmt.Errorf("authorized keys line should be:\n'%s'\nGot:\n'%s'",
|
|
string(expectedBytes), string(kp.PublicKeyAuthorizedKeysLine))
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func verifyDsaKeyPair(kp KeyPair, e fromPrivateExpectedData) error {
|
|
privateKey, err := gossh.ParseRawPrivateKey(kp.PrivateKeyPemBlock)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
pk, ok := privateKey.(*dsa.PrivateKey)
|
|
if !ok {
|
|
return fmt.Errorf("private key should be *rsa.PrivateKey")
|
|
}
|
|
|
|
publicKey, err := gossh.NewPublicKey(&pk.PublicKey)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if kp.Comment != e.d.comment {
|
|
return fmt.Errorf("key pair comment should be:\n'%s'\nGot:\n'%s'",
|
|
e.d.comment, kp.Comment)
|
|
}
|
|
|
|
expectedBytes := bytes.TrimSuffix(gossh.MarshalAuthorizedKey(publicKey), []byte("\n"))
|
|
if len(e.d.comment) > 0 {
|
|
expectedBytes = append(expectedBytes, ' ')
|
|
expectedBytes = append(expectedBytes, e.d.comment...)
|
|
}
|
|
|
|
if !bytes.Equal(expectedBytes, kp.PublicKeyAuthorizedKeysLine) {
|
|
return fmt.Errorf("authorized keys line should be:\n'%s'\nGot:\n'%s'",
|
|
string(expectedBytes), string(kp.PublicKeyAuthorizedKeysLine))
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func verifyEd25519KeyPair(kp KeyPair, e fromPrivateExpectedData) error {
|
|
privateKey, err := gossh.ParseRawPrivateKey(kp.PrivateKeyPemBlock)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
pk, ok := privateKey.(*ed25519.PrivateKey)
|
|
if !ok {
|
|
return fmt.Errorf("private key should be *rsa.PrivateKey")
|
|
}
|
|
|
|
publicKey, err := gossh.NewPublicKey(pk.Public())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if kp.Comment != e.d.comment {
|
|
return fmt.Errorf("key pair comment should be:\n'%s'\nGot:\n'%s'",
|
|
e.d.comment, kp.Comment)
|
|
}
|
|
|
|
expectedBytes := bytes.TrimSuffix(gossh.MarshalAuthorizedKey(publicKey), []byte("\n"))
|
|
if len(e.d.comment) > 0 {
|
|
expectedBytes = append(expectedBytes, ' ')
|
|
expectedBytes = append(expectedBytes, e.d.comment...)
|
|
}
|
|
|
|
if !bytes.Equal(expectedBytes, kp.PublicKeyAuthorizedKeysLine) {
|
|
return fmt.Errorf("authorized keys line should be:\n'%s'\nGot:\n'%s'",
|
|
string(expectedBytes), string(kp.PublicKeyAuthorizedKeysLine))
|
|
}
|
|
|
|
return nil
|
|
}
|