Merge pull request #9036 from kareem-wolfssl/zd20239

Fix size used by signature context struct with WOLFSSL_NO_MALLOC.

Author: JacobBarthelmeh

wolfssl/wolfcrypt/asn.h

@@ -1386,7 +1386,7 @@ struct SignatureCtx {
 #endif
 #if !defined(NO_RSA) || !defined(NO_DSA)
     #ifdef WOLFSSL_NO_MALLOC
-    byte  sigCpy[MAX_SIG_SZ];
+    byte  sigCpy[MAX_ENCODED_SIG_SZ];
     #else
     byte* sigCpy;
     #endif

wolfssl/wolfcrypt/types.h

@@ -2071,7 +2071,6 @@ enum Max_ASN {
 #else
     MAX_ENCODED_SIG_SZ  =  64,
 #endif
-    MAX_SIG_SZ          = 256,
     MAX_ALGO_SZ         =  20,
     MAX_LENGTH_SZ       = WOLFSSL_ASN_MAX_LENGTH_SZ, /* Max length size for DER encoding */
     MAX_SHORT_SZ        = (1 + 1 + 5), /* asn int + byte len + 5 byte length */
@@ -2128,6 +2127,8 @@ enum Max_ASN {
 #define WC_MAX_BLOCK_SIZE  128
 #endif
 
+#define MAX_SIG_SZ MAX_ENCODED_SIG_SZ
+
 #ifdef WOLFSSL_CERT_GEN
     /* Used in asn.c MakeSignature for ECC and RSA non-blocking/async */
     enum CertSignState {