/**@class android.security.keystore.KeyProperties
@extends java.lang.Object

 Properties of <a href="{@docRoot}training/articles/keystore.html">Android Keystore</a> keys.
*/
var KeyProperties = {

/** Purpose of key: encryption.
*/
PURPOSE_ENCRYPT : "1",
/** Purpose of key: decryption.
*/
PURPOSE_DECRYPT : "2",
/** Purpose of key: signing or generating a Message Authentication Code (MAC).
*/
PURPOSE_SIGN : "4",
/** Purpose of key: signature or Message Authentication Code (MAC) verification.
*/
PURPOSE_VERIFY : "8",
/** Purpose of key: wrapping and unwrapping wrapped keys for secure import.
*/
PURPOSE_WRAP_KEY : "32",
/**Rivest Shamir Adleman (RSA) key. */
KEY_ALGORITHM_RSA : "RSA",
/**Elliptic Curve (EC) Cryptography key. */
KEY_ALGORITHM_EC : "EC",
/**Advanced Encryption Standard (AES) key. */
KEY_ALGORITHM_AES : "AES",
/** Triple Data Encryption Algorithm (3DES) key.

 @deprecated Included for interoperability with legacy systems. Prefer {@link android.security.keystore.KeyProperties#KEY_ALGORITHM_AES} for new development.
*/
KEY_ALGORITHM_3DES : "DESede",
/**Keyed-Hash Message Authentication Code (HMAC) key using SHA-1 as the hash. */
KEY_ALGORITHM_HMAC_SHA1 : "HmacSHA1",
/**Keyed-Hash Message Authentication Code (HMAC) key using SHA-224 as the hash. */
KEY_ALGORITHM_HMAC_SHA224 : "HmacSHA224",
/**Keyed-Hash Message Authentication Code (HMAC) key using SHA-256 as the hash. */
KEY_ALGORITHM_HMAC_SHA256 : "HmacSHA256",
/**Keyed-Hash Message Authentication Code (HMAC) key using SHA-384 as the hash. */
KEY_ALGORITHM_HMAC_SHA384 : "HmacSHA384",
/**Keyed-Hash Message Authentication Code (HMAC) key using SHA-512 as the hash. */
KEY_ALGORITHM_HMAC_SHA512 : "HmacSHA512",
/**Electronic Codebook (ECB) block mode. */
BLOCK_MODE_ECB : "ECB",
/**Cipher Block Chaining (CBC) block mode. */
BLOCK_MODE_CBC : "CBC",
/**Counter (CTR) block mode. */
BLOCK_MODE_CTR : "CTR",
/**Galois/Counter Mode (GCM) block mode. */
BLOCK_MODE_GCM : "GCM",
/** No encryption padding.
*/
ENCRYPTION_PADDING_NONE : "NoPadding",
/** PKCS#7 encryption padding scheme.
*/
ENCRYPTION_PADDING_PKCS7 : "PKCS7Padding",
/** RSA PKCS#1 v1.5 padding scheme for encryption.
*/
ENCRYPTION_PADDING_RSA_PKCS1 : "PKCS1Padding",
/** RSA Optimal Asymmetric Encryption Padding (OAEP) scheme.
*/
ENCRYPTION_PADDING_RSA_OAEP : "OAEPPadding",
/** RSA PKCS#1 v1.5 padding for signatures.
*/
SIGNATURE_PADDING_RSA_PKCS1 : "PKCS1",
/** RSA PKCS#1 v2.1 Probabilistic Signature Scheme (PSS) padding.
*/
SIGNATURE_PADDING_RSA_PSS : "PSS",
/** No digest: sign/authenticate the raw message.
*/
DIGEST_NONE : "NONE",
/** MD5 digest.
*/
DIGEST_MD5 : "MD5",
/** SHA-1 digest.
*/
DIGEST_SHA1 : "SHA-1",
/** SHA-2 224 (aka SHA-224) digest.
*/
DIGEST_SHA224 : "SHA-224",
/** SHA-2 256 (aka SHA-256) digest.
*/
DIGEST_SHA256 : "SHA-256",
/** SHA-2 384 (aka SHA-384) digest.
*/
DIGEST_SHA384 : "SHA-384",
/** SHA-2 512 (aka SHA-512) digest.
*/
DIGEST_SHA512 : "SHA-512",
/**Key was generated inside AndroidKeyStore. */
ORIGIN_GENERATED : "1",
/**Key was imported into AndroidKeyStore. */
ORIGIN_IMPORTED : "2",
/** Origin of the key is unknown. This can occur only for keys backed by an old TEE-backed
 implementation which does not record origin information.
*/
ORIGIN_UNKNOWN : "4",
/** Key was imported into the AndroidKeyStore in an encrypted wrapper. Unlike imported keys,
 securely imported keys can be imported without appearing as plaintext in the device's host
 memory.
*/
ORIGIN_SECURELY_IMPORTED : "8",

};