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# PGP 2.6.3ia-multi compatibility with other PGP versions

| pgp 2.6x | pgp 2.6.3ia-multi | pgp 2.6.3ia-multi03 | pgp 5x | pgp 6.5.8 | pgp 6.5.8ckt04 | pgp 7.0.3 | gpg 1.0.4 | gpg 1.0.4 with IDEA module
PUBLIC KEY ENCRYPTION
RSA/IDEA | yes | yes | yes | yes (*1) | yes (*1) | yes (*1) | yes (*1) | no | yes (*4)
RSA/3DES | no | no | yes | yes (*2) | yes (*2) | yes (*2) | yes (*2) | yes (*4) | yes (*4)
RSA/CAST5 | no | yes | yes | yes (*2) | yes (*2) | yes (*2) | yes (*2) | yes (*4) | yes (*4)
RSA/Blowfish | no | yes | yes | no | no | yes (*2) | no | yes (*4) | yes (*4)
RSA/Twofish | no | no | yes | no | no | yes (*2) | yes | yes (*4) | yes (*4)
RSA/AES128 | no | yes | yes | no | no | yes (*2) | no | no (*10) | no (*10)
RSA/AES192 | no | no | yes | no | no | yes (*2) | no | no (*10) | no (*10)
RSA/AES256 | no | no | yes | no | no | yes (*2) | yes | no (*10) | no (*10)
| *1 IDEA should be enabled in PGP Options *2 <cipher> should be slected and IDEA disabled in PGP Options *4 with option: --cipher-algo <cipher> --rfc1991
PUBLIC KEY DECRYPTION
RSA/IDEA | yes | yes | yes | yes | yes | yes | yes | no | yes
RSA/3DES | no | no | yes | yes | yes | yes | yes | yes | yes
RSA/CAST5 | no | yes | yes | yes | yes | yes | yes | yes | yes
RSA/Blowfish | no | yes | yes | no | no | yes | no | yes | yes
RSA/Twofish | no | no | yes | no | no | yes | yes | yes | yes
RSA/AES128 | no | yes | yes | no | no | yes | yes | yes | yes
RSA/AES192 | no | no | yes | no | no | yes | yes | yes | yes
RSA/AES256 | no | no | yes | no | no | yes | yes | yes | yes
FILE SIGNATURE CREATION
RSA/MD5 | yes | yes | yes | yes | yes | yes | yes | yes (*5) | yes (*5)
RSA/SHA1 | no | yes | yes | ? no | no | yes | no | yes (*5) | yes (*5)
RSA/RIPEMD160 | no | no | yes | ? no | no | yes | no | yes (*5) | yes (*5)
| *5 with option: --digest-algo <hash_algo>
FILE SIGNATURE VERIFICATION
RSA/MD5 | yes | yes | yes | yes | yes | yes | yes | yes | yes
RSA/SHA1 | no | yes | yes | ? yes | yes | yes | yes | yes | yes
RSA/RIPEMD160 | no | no | yes | ? | ? | yes | yes | yes | yes
KEY SIGNATURE CREATION
RSA/MD5 | yes | yes | yes | yes | yes | yes | yes | yes | yes
RSA/SHA1 | no | no | no | ? no | no | ? | no | ? yes | ? yes
RSA/RIPEMD160 | no | no | yes | ? no | no | ? | no | ? yes | ? yes
KEY SIGNATURE VERIFICATION
RSA/MD5 | yes | yes | yes | yes | yes | yes | yes | yes | yes
RSA/SHA1 | no | yes | yes | ? yes | ? yes | yes | yes | yes | yes
RSA/RIPEMD160 | no | no | yes | ? | ? | yes | yes | yes | yes
RSA PRIVATE KEY PROTECTION
unencrypted | yes | yes | yes | yes | yes | yes | yes | yes | yes
IDEA/MD5 | yes | yes | yes | yes | yes | yes | yes | no | yes
3DES/MD5 | no | yes | yes | yes (*9) | yes (*9) | yes (*9) | yes (*9) | yes | yes
CAST5/MD5 | no | yes | yes | yes (*9) | yes (*9) | yes (*9) | yes (*9) | yes | yes
Blowfish/MD5 | no | yes | yes | no | no | yes (*9) | no | yes | yes
Twofish/MD5 | no | no | yes | no | no | yes (*9) | yes (*9) | yes | yes
AES128/MD5 | no | yes | yes | no | no | yes (*9) | yes (*9) | yes | yes
AES192/MD5 | no | no | yes | no | no | yes (*9) | yes (*9) | yes | yes
AES256/MD5 | no | no | yes | no | no | yes (*9) | yes (*9) | yes | yes
xxx/(SHA1|RIPEMD160) | no | no | no | no | no | ? no | no | ? | ?
| *9 can decrypt but can not encrypt
CONVENTIONAL ENCRYPTION
IDEA/MD5 | yes | yes | yes | yes | yes (*3) | yes (*3) | yes | no | yes (*7)
3DES/MD5 | no | no | yes | no (*10) | no (*10) | no (*10) | no (*10) | yes (*7) | yes (*7)
CAST5/MD5 | no | yes | yes | no (*10) | no (*10) | no (*10) | no (*10) | yes (*7) | yes (*7)
Blowfish/MD5 | no | yes | yes | no | no | no (*10) | no | yes (*7) | yes (*7)
Twofish/MD5 | no | yes | yes | no | no | no (*10) | no (*10) | no (*10) | no (*10)
AES128/MD5 | no | no | yes | no | no | no (*10) | no | no (*10) | no (*10)
AES192/MD5 | no | no | yes | no | no | no (*10) | no | no (*10) | no (*10)
AES256/MD5 | no | no | yes | no | no | no (*10) | no (*10) | no (*10) | no (*10)
xxx/(SHA1|RIPEMD160) | no | no | no | ? | ? | ? | ? | yes | yes
| *3 IDEA should be slected in PGP Options *7 with option: --cipher-algo <cipher> --digest-algo MD5 --rfc1991 --compress-algo 1 --set-filesize <size>
CONVENTIONAL DECRYPTION
IDEA/MD5 | yes | yes | yes | yes | yes | yes | yes | no | yes (*8)
3DES/MD5 | no | no | yes | no (*10) | no (*10) | no (*10) | no (*10) | yes (*8) | yes (*8)
CAST5/MD5 | no | yes | yes | no (*10) | no (*10) | no (*10) | no (*10) | yes (*8) | yes (*8)
Blowfish/MD5 | no | yes | yes | no | no | no (*10) | no | yes (*8) | yes (*8)
Twofish/MD5 | no | no | yes | no | no | no (*10) | no (*10) | yes (*8) | yes (*8)
AES128/MD5 | no | yes | yes | no | no | no (*10) | no (*10) | yes (*8) | yes (*8)
AES192/MD5 | no | no | yes | no | no | no (*10) | no (*10) | yes (*8) | yes (*8)
AES256/MD5 | no | no | yes | no | no | no (*10) | no (*10) | yes (*8) | yes (*8)
xxx/(SHA1|RIPEMD160) | no | no | no | ? | ? | ? | ? | yes | yes
| *8 with option: --cipher-algo <cipher> --digest-algo MD5
| pgp 2.6x | pgp 2.6.3ia-multi | pgp 2.6.3ia-multi03 | pgp 5x | pgp 6.5.8 | pgp 6.5.8ckt04 | pgp 7.0.3 | gpg 1.0.4 | gpg 1.0.4 with IDEA module
*10 not realy "no" - it just means "no for PGP 2.6.3ia-multi". For example, PGP6.5 can use CAST5 for conventional encription, but file format is different and PGP 2.6.3ia-multi does not understand it so it is "no" in this table. "?" - not tested "? yes/no" - not tested, but probably "yes/no"

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    Version: 6.5.8ckt http://www.ipgpp.com/

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    XAhOYSiXQCz3hL6nM2Vr33Rm
    =v7Oj
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