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25 
26 package java.security;
27 
28 /**
29  * An enumeration of cryptographic primitives.
30  *
31  * @since 1.7
32  */
33 public enum CryptoPrimitive {
34     /**
35      * Hash function
36      */
37     MESSAGE_DIGEST,
38 
39     /**
40      * Cryptographic random number generator
41      */
42     SECURE_RANDOM,
43 
44     /**
45      * Symmetric primitive: block cipher
46      */
47     BLOCK_CIPHER,
48 
49     /**
50      * Symmetric primitive: stream cipher
51      */
52     STREAM_CIPHER,
53 
54     /**
55      * Symmetric primitive: message authentication code
56      */
57     MAC,
58 
59     /**
60      * Symmetric primitive: key wrap
61      */
62     KEY_WRAP,
63 
64     /**
65      * Asymmetric primitive: public key encryption
66      */
67     PUBLIC_KEY_ENCRYPTION,
68 
69     /**
70      * Asymmetric primitive: signature scheme
71      */
72     SIGNATURE,
73 
74     /**
75      * Asymmetric primitive: key encapsulation mechanism
76      */
77     KEY_ENCAPSULATION,
78 
79     /**
80      * Asymmetric primitive: key agreement and key distribution
81      */
82     KEY_AGREEMENT
83 }
84