crypto: improve compatibility

EVP_MD_CTX_set_pkey_ctx() is fairly new openssl function, and not
existing in many alternative. Use EVP_MD_CTX_reset() which is slightly
more heavy but more portable. Add also signature buffer lengths to
work with RSA.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/adb.h b/src/adb.h
index 1944522..2319f92 100644
--- a/src/adb.h
+++ b/src/adb.h
@@ -74,7 +74,7 @@ static inline apk_blob_t adb_block_blob(struct adb_block *b) {
 	return APK_BLOB_PTR_LEN(adb_block_payload(b), adb_block_length(b));
 }
 
-#define ADB_MAX_SIGNATURE_LEN 256
+#define ADB_MAX_SIGNATURE_LEN 2048
 
 struct adb_sign_hdr {
 	uint8_t sign_ver, hash_alg;