diff options
| -rw-r--r-- | packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/cdc/Hkdf.java | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/cdc/Hkdf.java b/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/cdc/Hkdf.java index c7af8c8778ce..d0776aef78b6 100644 --- a/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/cdc/Hkdf.java +++ b/packages/BackupEncryption/src/com/android/server/backup/encryption/chunking/cdc/Hkdf.java @@ -40,18 +40,18 @@ public final class Hkdf { * * <p>IMPORTANT: The use or edit of this method requires a security review. * - * @param masterKey Master key from which to derive sub-keys. + * @param mainKey Main key from which to derive sub-keys. * @param salt A randomly generated 256-bit byte string. * @param data Arbitrary information that is bound to the derived key (i.e., used in its * creation). - * @return Raw derived key bytes = HKDF-SHA256(masterKey, salt, data). + * @return Raw derived key bytes = HKDF-SHA256(mainKey, salt, data). * @throws InvalidKeyException If the salt can not be used as a valid key. */ - static byte[] hkdf(byte[] masterKey, byte[] salt, byte[] data) throws InvalidKeyException { - Objects.requireNonNull(masterKey, "HKDF requires master key to be set."); + static byte[] hkdf(byte[] mainKey, byte[] salt, byte[] data) throws InvalidKeyException { + Objects.requireNonNull(mainKey, "HKDF requires main key to be set."); Objects.requireNonNull(salt, "HKDF requires a salt."); Objects.requireNonNull(data, "No data provided to HKDF."); - return hkdfSha256Expand(hkdfSha256Extract(masterKey, salt), data); + return hkdfSha256Expand(hkdfSha256Extract(mainKey, salt), data); } private Hkdf() {} |