Number,Name,Status,ESP Reference,IKEv2 Reference
0,Reserved,,[RFC7296],-
1,ENCR_DES_IV64,DEPRECATED [RFC9395],UNSPECIFIED,-
2,ENCR_DES,DEPRECATED [RFC8247],[RFC2405],[RFC7296]
3,ENCR_3DES,,[RFC2451],[RFC7296]
4,ENCR_RC5,DEPRECATED [RFC9395],[RFC2451],[RFC7296]
5,ENCR_IDEA,DEPRECATED [RFC9395],[RFC2451],[RFC7296]
6,ENCR_CAST,DEPRECATED [RFC9395],[RFC2451],[RFC7296]
7,ENCR_BLOWFISH,DEPRECATED [RFC9395],[RFC2451],[RFC7296]
8,ENCR_3IDEA,DEPRECATED [RFC9395],UNSPECIFIED,[RFC7296]
9,ENCR_DES_IV32,DEPRECATED [RFC9395],UNSPECIFIED,-
10,Reserved,,[RFC7296],-
11,ENCR_NULL,,[RFC2410],Not allowed
12,ENCR_AES_CBC,,[RFC3602],[RFC7296]
13,ENCR_AES_CTR,,[RFC3686],[RFC5930]
14,ENCR_AES_CCM_8,,[RFC4309],[RFC5282]
15,ENCR_AES_CCM_12,,[RFC4309],[RFC5282]
16,ENCR_AES_CCM_16,,[RFC4309],[RFC5282]
17,Unassigned,,,
18,ENCR_AES_GCM_8,,"[RFC4106]
          [RFC8247]","[RFC5282]
          [RFC8247]"
19,ENCR_AES_GCM_12,,"[RFC4106]
          [RFC8247]","[RFC5282]
          [RFC8247]"
20,ENCR_AES_GCM_16,,"[RFC4106]
          [RFC8247]","[RFC5282]
          [RFC8247]"
21,ENCR_NULL_AUTH_AES_GMAC,,[RFC4543],Not allowed
22,Reserved for IEEE P1619 XTS-AES,,[Matt_Ball],-
23,ENCR_CAMELLIA_CBC,,[RFC5529],[RFC7296]
24,ENCR_CAMELLIA_CTR,,[RFC5529],-
25,ENCR_CAMELLIA_CCM_8,,"[RFC5529]
          [RFC8247]",-
26,ENCR_CAMELLIA_CCM_12,,"[RFC5529]
          [RFC8247]",-
27,ENCR_CAMELLIA_CCM_16,,"[RFC5529]
          [RFC8247]",-
28,ENCR_CHACHA20_POLY1305,,[RFC7634],[RFC7634]
29,ENCR_AES_CCM_8_IIV,,[RFC8750],Not allowed
30,ENCR_AES_GCM_16_IIV,,[RFC8750],Not allowed
31,ENCR_CHACHA20_POLY1305_IIV,,[RFC8750],Not allowed
32,ENCR_KUZNYECHIK_MGM_KTREE,,[RFC9227],[RFC9227]
33,ENCR_MAGMA_MGM_KTREE,,[RFC9227],[RFC9227]
34,ENCR_KUZNYECHIK_MGM_MAC_KTREE,,[RFC9227],Not allowed
35,ENCR_MAGMA_MGM_MAC_KTREE,,[RFC9227],Not allowed
36-1023,Unassigned,,,
1024-65535,Reserved for Private Use,,[RFC7296],[RFC7296]