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Old: One-Pass Signature Packet(tag 4)(13 bytes)
New version(3)
Sig type - Signature of a binary document(0x00).
Hash alg - SHA1(hash 2)
Pub alg - DSA Digital Signature Algorithm(pub 17)
Key ID - 0xFD90DA9732D8EBD2
Next packet - other than one pass signature
Old: Literal Data Packet(tag 11)(45 bytes)
Format - binary
Filename - hoge
File modified time - Sat Nov 28 01:11:39 JST 1998
Literal - ...
Old: Signature Packet(tag 2)(70 bytes)
Ver 4 - new
Sig type - Signature of a binary document(0x00).
Pub alg - DSA Digital Signature Algorithm(pub 17)
Hash alg - SHA1(hash 2)
Hashed Sub: signature creation time(sub 2)(4 bytes)
Time - Sat Nov 28 01:11:39 JST 1998
Sub: issuer key ID(sub 16)(8 bytes)
Key ID - 0xFD90DA9732D8EBD2
Hash left 2 bytes - 0a 7d
DSA r(160 bits) - ...
DSA s(159 bits) - ...
-> hash(160 bits)
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