Incompatibility between GnuPG 1.2 and 1.4?

[Christian Stork]

As requested:

$ gpg-1.4.2 -vv mail.asc
gpg: armor: BEGIN PGP MESSAGE
gpg: armor header: Version: GnuPG v1.2.5 (GNU/Linux)
:pubkey enc packet: version 3, algo 16, keyid 4AA7E00CB0BE33B2
        data: [3070 bits]
        data: [3071 bits]
gpg: public key is B0BE33B2
gpg: using subkey B0BE33B2 instead of primary key 50F9CA2F

You need a passphrase to unlock the secret key for
user: "Christian H. Stork (University) <cstork at ics.uci.edu>"
gpg: using subkey B0BE33B2 instead of primary key 50F9CA2F
3072-bit ELG-E key, ID B0BE33B2, created 1999-10-02 (main key ID 50F9CA2F)

gpg: public key encrypted data: good DEK
:pubkey enc packet: version 3, algo 16, keyid 110C58544A12AF6D
        data: [2048 bits]
        data: [2046 bits]
gpg: public key is 4A12AF6D
:encrypted data packet:
        length: unknown
gpg: using subkey 4A12AF6D instead of primary key 6A6DDB60
gpg: encrypted with 2048-bit ELG-E key, ID 4A12AF6D, created 2001-12-14
      "Marc-Andre Lemburg <mal at lemburg.com>"
gpg: encrypted with 3072-bit ELG-E key, ID B0BE33B2, created 1999-10-02
      "Christian H. Stork (University) <cstork at ics.uci.edu>"
gpg: CAST5 encrypted data
:compressed packet: algo=121
gpg: uncompressing failed: unknown compress algorithm
gpg: decryption okay
gpg: WARNING: message was not integrity protected


So, what's algo 121 ?

-- 
Chris Stork   <>  Support eff.org!  <>   http://www.ics.uci.edu/~cstork/
OpenPGP fingerprint:  B08B 602C C806 C492 D069  021E 41F3 8C8D 50F9 CA2F