"ID",Algorithm,Reference
0,Plaintext or unencrypted data,[RFC9580]
1,IDEA [IDEA],[RFC9580]
2,"TripleDES (or DES-EDE) [SP800-67] with 168-bit
key derived from 192",[RFC9580]
3,CAST5 with 128-bit key [RFC2144],[RFC9580]
4,"Blowfish with 128-bit key, 16 rounds [BLOWFISH]",[RFC9580]
5,Reserved,[RFC9580]
6,Reserved,[RFC9580]
7,AES with 128-bit key [AES],[RFC9580]
8,AES with 192-bit key,[RFC9580]
9,AES with 256-bit key,[RFC9580]
10,Twofish with 256-bit key [TWOFISH],[RFC9580]
11,Camellia with 128-bit key [RFC3713],[RFC9580]
12,Camellia with 192-bit key,[RFC9580]
13,Camellia with 256-bit key,[RFC9580]
14-99,Unassigned,
100-110,Private or Experimental Use,[RFC9580]
111-252,Unassigned,
253-255,"Reserved to avoid collision with Secret Key Encryption 
(see the [OpenPGP Secret Key Encryption (S2K Usage Octet)] registry 
and [RFC9580, Section 5.5.3])",[RFC9580]