Secret key export difference in 1.4 and 2.1

[Neal H. Walfield]

Hi,

The secret key is not simply a dump of the private key material, but
an OpenPGP message.  This means that there are many ways to encode the
same data.  It wouldn't surprise me if we are using a slightly
different encoding in 2.1 vs. 1.4.  But, this is not a bug.  What
exactly is the test doing, and what is it testing for?

Thanks!
:) Neal

On Wed, 26 Oct 2016 11:00:18 +0200,
A.L.E.C wrote:
> 
> I ported PEAR::Crypt_GPG library to GnuPG 2.1 and one test fails when
> testing GnuPG 2.1.15 (no problem with 1.4.20). I'm not sure this is a
> bug or not.
> 
> The exported key has no passphrase set and was created with 1.4. Also,
> the keyring is in old format before I execute gpg with
> --export-secret-keys argument. So, a migration process is involved. I
> see no errors in the gpg output, status is EXPORT_RES 1 1 1.
> 
> The difference is in last three lines of the armored key data:
> 
> Failed asserting that
> "-----BEGIN PGP PRIVATE KEY BLOCK-----
> 
> lQG7BEjS+OkRBACyn20BV58+x0c2Fq49TLtrWQBCT9VxnNdeCUJ4sEgomTEUhYXu
> LAJ7UmORwjhT16l2X7EJKXZEfEbfZI8j/iYnpIBp/iYtsZ8y6bN70wdeNpRtZkB3
> Cu1mU5C6d/thw0TmedW93bQ06wMtzBEPEQuOM+YjiKQZjjgqFmln5T3ctwCg6b/H
> 8//3jEa2N5J8U4yTOxZjxUMD/ROX/utLDNKX+dTLy69uQrlr94tabwszpBgdTYMw
> zgefgUYDdR7esWM5rZ5MMJX9lPzeePMPf0/7RllhYA4XgJ7EvzVTGNAuL45LVJrG
> 9B5dhwrChoKFNUtCfINS61urPdhUQA8YzmUxI+iDgBkD4FujLoh8ww+pxupJRsYZ
> b39iA/0ZJKZOeIN3JyUrIlqSqENG549H0+Y4TC5t8YixafB8fPBjlMz0+xGMR3Xx
> b8WHD+XFdulr/sVZ4WZ00YtOGhS/3ZF7qGrxCCBrCAjDRdPzqaF15nMaqgIogOIO
> L5j9wI6wRpMsJBxEbttWR/9K4BXhBriwg9qv4vamwzFM0t2vLQAAnRezOzJCxMwH
> xJHP1w6hpE8EQXV2CXq0c05vIFBhc3NwaHJhc2UgUHVibGljIGFuZCBQcml2YXRl
> IFRlc3QgS2V5IChkbyBub3QgZW5jcnlwdCBpbXBvcnRhbnQgZGF0YSB3aXRoIHRo
> aXMga2V5KSA8bm8tcGFzc3BocmFzZUBleGFtcGxlLmNvbT6IYAQTEQIAIAUCSNL4
> 6QIbAwYLCQgHAwIEFQIIAwQWAgMBAh4BAheAAAoJEJRWP7OYraayJmcAoMNHBJD2
> jyN3z33NoeWeo+E8rh0mAJ9GYB60jPdeAy8QI8HecG15bd7kAZ0CPQRI0vj1EAgA
> hewinC9zCUsdDq6ajNdMztkTKyuhZuNB/7a0xBWuS2ugUobAEU549c7BuUYw8B9q
> pW1krb5ZDOa/szWN6FkWoyJwKG6POp38bASCZ0JL3QLcrSEENjdmqsjWggQEwfFa
> Teb15PLEPJQW1m5WgD31Cf5HCBRQmPMgsI2r9XDiLFJm8BdJ6JTtV9UHwCbM/kA7
> U3RrL30uVfreJYhPepQvjkfU66ZzHADjmpu2d8iMee1I7d581NecYG9U87LZf2Xr
> 9r2m4YmiGO5w/oKVyMXuJfNAgMSMu9EIF+whBFdQjlZ2nEfwf0K1oU/Eod1lKTRA
> FYcpDlwhO5M18pIcc4gI+wADBQf/d5ISDTDuirgkyFOi1sJxk/avD10NNvmaXYxc
> 
> 
> 2gTYF7Natkq0T0x2behWwNbO3DhZOFrZqlj+mkg9LRx/Q0XMviac1X0ils20MdS2
> PSa8wkg8BC+2RVbV6DrNAyF+E2+9penGulTgKsPIybn0azBgVkfoRBjpTu8D8xFH
> +ASaZUt+850oynFlDmAXWfqU5pcTMVEny+KrY62S6TDH2zLEfIJKK97oRuU9F86A
> UbAIn575fUHJnzgEoelxKJTWWlDCH9IPq37ZrStNeOBqURgzttvMaL7/zhcVPIEw
> 9WFgG8TCEpYNOg+x0gqETHM2rIRBdGfjgaSY7T9fXoxiikv37AABVAg+anwLssMt
> ypICzst26P2lLSCGT1f7icmHvSqBgVdOQizx/9QYGMoUigAUyohJBBgRAgAJBQJI
> 0vj1AhsMAAoJEJRWP7OYraaywmQAnjDYzwwdog+Rim+pH3T8zF1W7b/9AKCnZkLp
> rb8Yh7YE/mZLoz20MZ8eWw==
> =+I0b
> -----END PGP PRIVATE KEY BLOCK-----
> "
> contains "lQG7BEjS+OkRBACyn20BV58+x0c2Fq49TLtrWQBCT9VxnNdeCUJ4sEgomTEUhYXu
> LAJ7UmORwjhT16l2X7EJKXZEfEbfZI8j/iYnpIBp/iYtsZ8y6bN70wdeNpRtZkB3
> Cu1mU5C6d/thw0TmedW93bQ06wMtzBEPEQuOM+YjiKQZjjgqFmln5T3ctwCg6b/H
> 8//3jEa2N5J8U4yTOxZjxUMD/ROX/utLDNKX+dTLy69uQrlr94tabwszpBgdTYMw
> zgefgUYDdR7esWM5rZ5MMJX9lPzeePMPf0/7RllhYA4XgJ7EvzVTGNAuL45LVJrG
> 9B5dhwrChoKFNUtCfINS61urPdhUQA8YzmUxI+iDgBkD4FujLoh8ww+pxupJRsYZ
> b39iA/0ZJKZOeIN3JyUrIlqSqENG549H0+Y4TC5t8YixafB8fPBjlMz0+xGMR3Xx
> b8WHD+XFdulr/sVZ4WZ00YtOGhS/3ZF7qGrxCCBrCAjDRdPzqaF15nMaqgIogOIO
> L5j9wI6wRpMsJBxEbttWR/9K4BXhBriwg9qv4vamwzFM0t2vLQAAnRezOzJCxMwH
> xJHP1w6hpE8EQXV2CXq0c05vIFBhc3NwaHJhc2UgUHVibGljIGFuZCBQcml2YXRl
> IFRlc3QgS2V5IChkbyBub3QgZW5jcnlwdCBpbXBvcnRhbnQgZGF0YSB3aXRoIHRo
> aXMga2V5KSA8bm8tcGFzc3BocmFzZUBleGFtcGxlLmNvbT6IYAQTEQIAIAUCSNL4
> 6QIbAwYLCQgHAwIEFQIIAwQWAgMBAh4BAheAAAoJEJRWP7OYraayJmcAoMNHBJD2
> jyN3z33NoeWeo+E8rh0mAJ9GYB60jPdeAy8QI8HecG15bd7kAZ0CPQRI0vj1EAgA
> hewinC9zCUsdDq6ajNdMztkTKyuhZuNB/7a0xBWuS2ugUobAEU549c7BuUYw8B9q
> pW1krb5ZDOa/szWN6FkWoyJwKG6POp38bASCZ0JL3QLcrSEENjdmqsjWggQEwfFa
> Teb15PLEPJQW1m5WgD31Cf5HCBRQmPMgsI2r9XDiLFJm8BdJ6JTtV9UHwCbM/kA7
> U3RrL30uVfreJYhPepQvjkfU66ZzHADjmpu2d8iMee1I7d581NecYG9U87LZf2Xr
> 9r2m4YmiGO5w/oKVyMXuJfNAgMSMu9EIF+whBFdQjlZ2nEfwf0K1oU/Eod1lKTRA
> FYcpDlwhO5M18pIcc4gI+wADBQf/d5ISDTDuirgkyFOi1sJxk/avD10NNvmaXYxc
> 2gTYF7Natkq0T0x2behWwNbO3DhZOFrZqlj+mkg9LRx/Q0XMviac1X0ils20MdS2
> PSa8wkg8BC+2RVbV6DrNAyF+E2+9penGulTgKsPIybn0azBgVkfoRBjpTu8D8xFH
> +ASaZUt+850oynFlDmAXWfqU5pcTMVEny+KrY62S6TDH2zLEfIJKK97oRuU9F86A
> UbAIn575fUHJnzgEoelxKJTWWlDCH9IPq37ZrStNeOBqURgzttvMaL7/zhcVPIEw
> 9WFgG8TCEpYNOg+x0gqETHM2rIRBdGfjgaSY7T9fXoxiikv37AABVAg+anwLssMt
> ypICzst26P2lLSCGT1f7icmHvSqBgVdOQizx/9QYGMoUigAUyohJBBgRAgAJBQJI
> 0vj1AhsMAAoJEJRWP7OYraaywmQAoK31UjQ8v0JxjEBYQISdvYuLNpA8AKC7QxpJ
> WOad2BFLoSh6WM3H7KvMUg==
> =ZTyB
> -----END PGP PRIVATE KEY BLOCK-----".
> 
> -- 
> Aleksander 'A.L.E.C' Machniak
> Kolab Groupware Developer         [http://kolab.org]
> Roundcube Webmail Developer   [http://roundcube.net]
> ----------------------------------------------------
> PGP: 19359DC1 # Blog: https://kolabian.wordpress.com
> 
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