diff --git a/SConscript.firmware b/SConscript.firmware
index be4bb8f425..6d660631fa 100644
--- a/SConscript.firmware
+++ b/SConscript.firmware
@@ -62,6 +62,7 @@ SOURCE_MOD += [
     'vendor/trezor-crypto/ed25519-donna/ed25519-keccak.c',
     'vendor/trezor-crypto/ed25519-donna/ed25519-sha3.c',
     'vendor/trezor-crypto/ed25519-donna/modm-donna-32bit.c',
+    'vendor/trezor-crypto/groestl.c',
     'vendor/trezor-crypto/hasher.c',
     'vendor/trezor-crypto/hmac.c',
     'vendor/trezor-crypto/memzero.c',
diff --git a/SConscript.unix b/SConscript.unix
index 818d511aca..83f1a3c847 100644
--- a/SConscript.unix
+++ b/SConscript.unix
@@ -59,6 +59,7 @@ SOURCE_MOD += [
     'vendor/trezor-crypto/ed25519-donna/ed25519-keccak.c',
     'vendor/trezor-crypto/ed25519-donna/ed25519-sha3.c',
     'vendor/trezor-crypto/ed25519-donna/modm-donna-32bit.c',
+    'vendor/trezor-crypto/groestl.c',
     'vendor/trezor-crypto/hasher.c',
     'vendor/trezor-crypto/hmac.c',
     'vendor/trezor-crypto/memzero.c',
diff --git a/embed/extmod/modtrezorcrypto/modtrezorcrypto-blake2b.h b/embed/extmod/modtrezorcrypto/modtrezorcrypto-blake2b.h
index 516596d687..eb4a219c2f 100644
--- a/embed/extmod/modtrezorcrypto/modtrezorcrypto-blake2b.h
+++ b/embed/extmod/modtrezorcrypto/modtrezorcrypto-blake2b.h
@@ -49,7 +49,7 @@ STATIC mp_obj_t mod_trezorcrypto_Blake2b_make_new(const mp_obj_type_t *type, siz
         size_t outlen = trezor_obj_get_uint(args[1]);
         mp_buffer_info_t personal;
         mp_get_buffer_raise(args[2], &personal, MP_BUFFER_READ);
-        res = blake2b_InitPersonal(&(o->ctx), outlen, personal.buf);
+        res = blake2b_InitPersonal(&(o->ctx), outlen, personal.buf, personal.len);
     } else if (n_args == 2) {
         size_t outlen = trezor_obj_get_uint(args[1]);
         res = blake2b_Init(&(o->ctx), outlen);
diff --git a/vendor/trezor-crypto b/vendor/trezor-crypto
index 8b61a7e365..669acd7331 160000
--- a/vendor/trezor-crypto
+++ b/vendor/trezor-crypto
@@ -1 +1 @@
-Subproject commit 8b61a7e36572b176f60e70d00fba9d368a601fb4
+Subproject commit 669acd7331fc02b6ef41c4a91112e6e6d6e831be