2020-09-18 18:01:16 -04:00
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#############################################################################
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SSHSecure - a program to harden OpenSSH from defaults
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Copyright (C) 2020 Brent Saner
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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#############################################################################
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2020-09-11 23:06:51 -04:00
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The following is a plaintext key (no passphrase provided).
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The new "v1" format contains the header "-----BEGIN OPENSSH PRIVATE KEY-----"
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and the footer "-----END OPENSSH PRIVATE KEY-----".
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All length ints are uint32, network-byte order.
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PEM:
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-----BEGIN OPENSSH PRIVATE KEY-----
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b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
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QyNTUxOQAAACBEOIvJc2hN1mhXExEiv/ISyYO7prFixOl80R9zw52XsAAAAJjPbUqwz21K
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sAAAAAtzc2gtZWQyNTUxOQAAACBEOIvJc2hN1mhXExEiv/ISyYO7prFixOl80R9zw52XsA
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AAAEBqSF+KwoLTOqI6+TnpcaZY4ckcamLrBF8CvtJbNZflJ0Q4i8lzaE3WaFcTESK/8hLJ
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g7umsWLE6XzRH3PDnZewAAAAElRoaXMgaXMgYSB0ZXN0IGtleQECAw==
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-----END OPENSSH PRIVATE KEY-----
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HEX (only base64 string above):
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00000000: 6f70 656e 7373 682d 6b65 792d 7631 0000 openssh-key-v1..
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00000010: 0000 046e 6f6e 6500 0000 046e 6f6e 6500 ...none....none.
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00000020: 0000 0000 0000 0100 0000 3300 0000 0b73 ..........3....s
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00000030: 7368 2d65 6432 3535 3139 0000 0020 4438 sh-ed25519... D8
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00000040: 8bc9 7368 4dd6 6857 1311 22bf f212 c983 ..shM.hW..".....
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00000050: bba6 b162 c4e9 7cd1 1f73 c39d 97b0 0000 ...b..|..s......
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00000060: 0098 cf6d 4ab0 cf6d 4ab0 0000 000b 7373 ...mJ..mJ.....ss
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00000070: 682d 6564 3235 3531 3900 0000 2044 388b h-ed25519... D8.
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00000080: c973 684d d668 5713 1122 bff2 12c9 83bb .shM.hW.."......
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00000090: a6b1 62c4 e97c d11f 73c3 9d97 b000 0000 ..b..|..s.......
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000000a0: 406a 485f 8ac2 82d3 3aa2 3af9 39e9 71a6 @jH_....:.:.9.q.
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000000b0: 58e1 c91c 6a62 eb04 5f02 bed2 5b35 97e5 X...jb.._...[5..
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000000c0: 2744 388b c973 684d d668 5713 1122 bff2 'D8..shM.hW.."..
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000000d0: 12c9 83bb a6b1 62c4 e97c d11f 73c3 9d97 ......b..|..s...
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000000e0: b000 0000 1254 6869 7320 6973 2061 2074 .....This is a t
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000000f0: 6573 7420 6b65 7901 0203 est key...
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ANNOTATED HEX:
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0 6f70656e7373682d6b65792d763100 ("openssh-key-v1" + 0x00)
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1.0 00000004 (4)
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1.0.0 6e6f6e65 ("none")
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2.0 00000004 (4)
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2.0.0 6e6f6e65 ("none")
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3.0 00000000 (0x00)
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3.0.0 (N/A)
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4.0 00000001 (1)
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4.0.0 00000033 (51)
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4.0.0.0 0000000b (11)
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4.0.0.0.0 7373682d65643235353139 ("ssh-ed25519")
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4.0.0.1 00000020 (32)
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4.0.0.1.0 44388bc973684dd66857131122bff212c983bba6b162c4e97cd11f73c39d97b0 (bytes)
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4.0.1 00000098 (151)
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4.0.1.0 cf6d4ab0 (3480046256)
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4.0.1.1 cf6d4ab0 (3480046256)
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4.0.1.2 -
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4.0.1.2.0 0000000b (11)
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4.0.1.2.0.0 7373682d65643235353139 ("ssh-ed25519")
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4.0.1.2.1 00000020 (32)
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4.0.1.2.1.0 44388bc973684dd66857131122bff212c983bba6b162c4e97cd11f73c39d97b0 (bytes)
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4.0.1.3 00000040 (64)
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4.0.1.3.0 6a485f8ac282d33aa23af939e971a658e1c91c6a62eb045f02bed25b3597e527
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44388bc973684dd66857131122bff212c983bba6b162c4e97cd11f73c39d97b0 (bytes)
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4.0.1.4 00000012 (18)
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4.0.1.4.0 5468697320697320612074657374206b6579 ("This is a test key")
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4.0.1.5 010203 ([1 2 3], 3 bytes)
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