The following table details the encryption types used in Safeguard Authentication Services.
| Encryption types | Specification | Active Directory version | Safeguard Authentication Services version | 
|---|---|---|---|
| 
 KERB_ENCTYPE_DES_CBC_CRC  | |||
| 
 CRC32  | 
 RFC 3961  | 
 All  | 
 All  | 
| 
 KERB_ENCTYPE_DES_CBC_MD5  | |||
| 
 RSA-MD5  | 
 RFC 3961  | 
 All  | 
 All  | 
| 
 KERB_ENCTYPE_RC4_HMAC_MD5  | |||
| 
 RC4-HMAC-MD5  | 
 RFC 4757  | 
 All  | 
 All  | 
| 
 KERB_ENCTYPE_AES128_CTS_HMAC_SHA1_96  | |||
| 
 HMAC-SHA1-96-AES128  | 
 RFC 3961  | 
 Windows Server 2008 +  | 
 3.3.2+  | 
| 
 KERB_ENCTYPE_AES256_CTS_HMAC_SHA1_96  | |||
| 
 HMAC-SHA1-96-AES256  | 
 RFC 3961  | 
 Windows Server 2008 +  | 
 3.3.2+  |