diff --git a/subsys/nrf_security/src/drivers/cracen/cracenpsa/src/ed25519.c b/subsys/nrf_security/src/drivers/cracen/cracenpsa/src/ed25519.c
index e6284936b553..738ec1f576fc 100644
--- a/subsys/nrf_security/src/drivers/cracen/cracenpsa/src/ed25519.c
+++ b/subsys/nrf_security/src/drivers/cracen/cracenpsa/src/ed25519.c
@@ -9,6 +9,8 @@
 #include <cracen/ec_helpers.h>
 #include <sxsymcrypt/hash.h>
 #include <cracen/mem_helpers.h>
+#include "crypmasterregs.h"
+#include "hw.h"
 
 /* This is the ASCII string with the
  * PHflag 1 and context size 0 appended as defined in:
@@ -249,37 +251,56 @@ int ed25519_verify_internal(const uint8_t *pubkey, const char *message,
 	struct sxhash hashopctx;
 	int status;
 
-	status = sx_hash_create(&hashopctx, &sxhashalg_sha2_512, sizeof(hashopctx));
 
+	status = sx_hash_create(&hashopctx, &sxhashalg_sha2_512, sizeof(hashopctx));
 	if (status != 0) {
 		return status;
 	}
 	if (prehash) {
 		status = sx_hash_feed(&hashopctx, dom2, sizeof(dom2));
+
 		if (status != 0) {
 			return status;
 		}
 	}
-	status = sx_hash_feed(&hashopctx, signature, SX_ED25519_SZ);
-
+	status = sx_hash_feed(&hashopctx, signature, SX_ED25519_SZ/2);
+	while ((sx_rdreg(REG_STATUS) & REG_STATUS_BUSY_MASK) != 0);
 	if (status != 0) {
 		return status;
 	}
-	status = sx_hash_feed(&hashopctx, pubkey, SX_ED25519_SZ);
 
+	status = sx_hash_feed(&hashopctx, signature+16, SX_ED25519_SZ/2);
+	while ((sx_rdreg(REG_STATUS) & REG_STATUS_BUSY_MASK) != 0);
+
+	if (status != 0) {
+		return status;
+	}
+	status = sx_hash_feed(&hashopctx, pubkey, SX_ED25519_SZ/2);
+	while ((sx_rdreg(REG_STATUS) & REG_STATUS_BUSY_MASK) != 0);
+	if (status != 0) {
+		return status;
+	}
+	status = sx_hash_feed(&hashopctx, pubkey+16, SX_ED25519_SZ/2);
+	while ((sx_rdreg(REG_STATUS) & REG_STATUS_BUSY_MASK) != 0);
 	if (status != 0) {
 		return status;
 	}
 	status = sx_hash_feed(&hashopctx, message, message_length);
+	while ((sx_rdreg(REG_STATUS) & REG_STATUS_BUSY_MASK) != 0);
 
 	if (status != 0) {
 		return status;
 	}
 	status = sx_hash_digest(&hashopctx, workmem);
+	while ((sx_rdreg(REG_STATUS) & REG_STATUS_BUSY_MASK) != 0);
+
+
 	if (status != 0) {
 		return status;
 	}
 	status = sx_hash_wait(&hashopctx);
+
+
 	if (status != 0) {
 		return status;
 	}
diff --git a/subsys/nrf_security/src/drivers/cracen/cracenpsa/src/sign.c b/subsys/nrf_security/src/drivers/cracen/cracenpsa/src/sign.c
index 36301d9f64f9..a8b81d3dcd9c 100644
--- a/subsys/nrf_security/src/drivers/cracen/cracenpsa/src/sign.c
+++ b/subsys/nrf_security/src/drivers/cracen/cracenpsa/src/sign.c
@@ -190,14 +190,14 @@ static int cracen_signature_prepare_ec_pubkey(struct sitask *t, struct si_sig_pu
 	status = SX_ERR_INCOMPATIBLE_HW;
 
 	if (IS_ENABLED(PSA_NEED_CRACEN_PURE_EDDSA_TWISTED_EDWARDS)) {
-		if (alg == PSA_ALG_PURE_EDDSA) {
+		if (alg == PSA_ALG_PURE_EDDSA || alg == PSA_ALG_ED25519PH) {
 			if (PSA_KEY_TYPE_IS_ECC_PUBLIC_KEY(psa_get_key_type(attributes))) {
 				memcpy(pubkey_buffer, key_buffer, key_buffer_size);
 				return SX_OK;
 			}
 			status = ed25519_create_pubkey(key_buffer, pubkey_buffer);
 			return status;
-		}
+			}
 	}
 
 	if (IS_ENABLED(PSA_NEED_CRACEN_ECDSA_SECP_R1) ||
diff --git a/subsys/nrf_security/src/drivers/cracen/sxsymcrypt/sxsymcrypt.cmake b/subsys/nrf_security/src/drivers/cracen/sxsymcrypt/sxsymcrypt.cmake
index 774dd1e15d56..7b0e269aeac2 100644
--- a/subsys/nrf_security/src/drivers/cracen/sxsymcrypt/sxsymcrypt.cmake
+++ b/subsys/nrf_security/src/drivers/cracen/sxsymcrypt/sxsymcrypt.cmake
@@ -18,4 +18,5 @@ list(APPEND cracen_driver_sources
 
 list(APPEND cracen_driver_include_dirs
     ${CMAKE_CURRENT_LIST_DIR}/include
+    ${CMAKE_CURRENT_LIST_DIR}/src
 )