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Include stream number in stream header nonce.

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akwizgran
2016-09-20 15:27:01 +01:00
parent 89ab4dd04e
commit 4be1c1bb7d
8 changed files with 96 additions and 82 deletions
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12
briar-api/src/org/briarproject/api/transport/TransportConstants.java
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@@ -8,11 +8,14 @@ public interface TransportConstants {
/** The length of the pseudo-random tag in bytes. */
int TAG_LENGTH = 16;
/** The length of the message authentication code (MAC) in bytes. */
int MAC_LENGTH = 16;
/** The length of the stream header nonce in bytes. */
int STREAM_HEADER_NONCE_LENGTH = 24;
/** The length of the stream header initialisation vector (IV) in bytes. */
int STREAM_HEADER_IV_LENGTH = 24;
int STREAM_HEADER_IV_LENGTH = STREAM_HEADER_NONCE_LENGTH - 8;
/** The length of the message authentication code (MAC) in bytes. */
int MAC_LENGTH = 16;
/** The length of the stream header in bytes. */
int STREAM_HEADER_LENGTH = STREAM_HEADER_IV_LENGTH + SecretKey.LENGTH
@@ -42,7 +45,8 @@ public interface TransportConstants {
* support. Streams may be shorter than this length, but all transport
* plugins must support streams of at least this length.
*/
int MIN_STREAM_LENGTH = 64 * 1024; // 64 KiB
int MIN_STREAM_LENGTH = STREAM_HEADER_LENGTH + FRAME_HEADER_LENGTH
+ MAC_LENGTH;
/** The maximum difference in milliseconds between two peers' clocks. */
int MAX_CLOCK_DIFFERENCE = 24 * 60 * 60 * 1000; // 24 hours