Initial import

src_common/ethUtils.h

@@ -0,0 +1,49 @@
+/*******************************************************************************
+*   Ledger Blue
+*   (c) 2016 Ledger
+*
+*  Licensed under the Apache License, Version 2.0 (the "License");
+*  you may not use this file except in compliance with the License.
+*  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+*  Unless required by applicable law or agreed to in writing, software
+*  distributed under the License is distributed on an "AS IS" BASIS,
+*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*  See the License for the specific language governing permissions and
+*  limitations under the License.
+********************************************************************************/
+
+#include "os.h"
+#include "cx.h"
+#include "app_cx_sha3.h"
+
+/**
+ * @brief Decode an RLP encoded field - see
+ * https://github.com/ethereum/wiki/wiki/RLP
+ * @param [in] buffer buffer containing the RLP encoded field to decode
+ * @param [in] bufferLength size of the buffer
+ * @param [out] fieldLength length of the RLP encoded field
+ * @param [out] offset offset to the beginning of the RLP encoded field from the
+ * buffer
+ * @param [out] list true if the field encodes a list, false if it encodes a
+ * string
+ * @return true if the RLP header is consistent
+ */
+bool rlpDecodeLength(uint8_t *buffer, uint32_t bufferLength,
+                     uint32_t *fieldLength, uint32_t *offset, bool *list);
+
+bool rlpCanDecode(uint8_t *buffer, uint32_t bufferLength, bool *valid);
+
+void getEthAddressFromKey(cx_ecfp_public_key_t *publicKey, uint8_t *out,
+                                app_cx_sha3_t *sha3Context);
+
+void getEthAddressStringFromKey(cx_ecfp_public_key_t *publicKey, uint8_t *out,
+                                app_cx_sha3_t *sha3Context);
+
+void getEthAddressStringFromBinary(uint8_t *address, uint8_t *out,
+                                   app_cx_sha3_t *sha3Context);
+
+bool adjustDecimals(char *src, uint32_t srcLength, char *target,
+                    uint32_t targetLength, uint8_t decimals);