commit b70a0fd1a5e3ca1941d27c60e923ae07c9c2691e
author Gilles Peskine <Gilles.Peskine@arm.com> Mon Jan 07 22:59:38 2019 +0100
committer Gilles Peskine <Gilles.Peskine@arm.com> Fri Jan 18 18:33:12 2019 +0100
tree 4f4deee6efc54b5f7dc41909e446a198d2d00bf0
parent 8d4be19517e4c549a1706650c5ec8d59d44a8f98

Key derivation by small input steps: proof-of-concept

Document the new API. Keep the old one.

Implement for HKDF. Use it in a few test cases.

Key agreement is still unchanged.

include/psa/crypto_struct.h

diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index ee3ecd7..bebc5c4 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -165,6 +165,8 @@
 #endif
     uint8_t offset_in_block;
     uint8_t block_number;
+    uint8_t state : 2;
+    uint8_t info_set : 1;
 } psa_hkdf_generator_t;
 #endif /* MBEDTLS_MD_C */