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密钥存储flash空间80->120，写调用说明

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zcy
2025-09-09 09:49:57 +08:00
parent 2f79d18966
commit 2549f565b4
3 changed files with 146 additions and 11 deletions
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20
Project/Src/com/cscn/Method.java
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@@ -31,10 +31,10 @@ public final class Method {
// (byte)0x67,(byte)0xC3,(byte)0x1C,(byte)0xB3,(byte)0xD3,(byte)0x5D,(byte)0xB7
// };
private static final byte[] IV25 = {
(byte)0x30,(byte)0x31,(byte)0x32,(byte)0x33,(byte)0x34,(byte)0x35,(byte)0x36,(byte)0x37,
(byte)0x38,(byte)0x39,(byte)0x61,(byte)0x62,(byte)0x63,(byte)0x64,(byte)0x65,(byte)0x66,
(byte)0x67,(byte)0x30,(byte)0x31,(byte)0x32,(byte)0x33,(byte)0x34,(byte)0x35,(byte)0x36,
(byte)0x37
(byte)0x30,(byte)0x31,(byte)0x32,(byte)0x33,(byte)0x34,(byte)0x35,(byte)0x36,(byte)0x37,
(byte)0x38,(byte)0x39,(byte)0x61,(byte)0x62,(byte)0x63,(byte)0x64,(byte)0x65,(byte)0x66,
(byte)0x67,(byte)0x30,(byte)0x31,(byte)0x32,(byte)0x33,(byte)0x34,(byte)0x35,(byte)0x36,
(byte)0x37
};
// Input: 明文（38字节）
@@ -159,12 +159,14 @@ public final class Method {
public Method() {
// key list tmp buffer, lenth must equal with key_store(flash)!
update_key_buf = JCSystem.makeTransientByteArray((short)120, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// 算法内部使用23Byte IV
extracted_iv_23 = JCSystem.makeTransientByteArray((short)23, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
ctx_buf = JCSystem.makeTransientByteArray((short)4, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
LFSR_hi = JCSystem.makeTransientShortArray((short)16, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
LFSR_lo = JCSystem.makeTransientShortArray((short)16, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
LFSR_hi = JCSystem.makeTransientShortArray((short)16, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
LFSR_lo = JCSystem.makeTransientShortArray((short)16, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// todo buf1 if not use, delete please
buf1 = JCSystem.makeTransientByteArray(MAX_DATA_BLOCK_SIZE, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
// todo buf2 if not use, delete please
@@ -174,8 +176,6 @@ public final class Method {
location_data = JCSystem.makeTransientByteArray((short)5, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
location_res_data = JCSystem.makeTransientByteArray((short)5, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
update_key_buf = JCSystem.makeTransientByteArray((short)80, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
rot31_bits = JCSystem.makeTransientShortArray((short)31, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
rot31_resBits = JCSystem.makeTransientShortArray((short)31, JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
@@ -1057,8 +1057,8 @@ public final class Method {
// 生成指定长度的密钥流
public void zuc256GenerateKeystream(short nwords,
short[] keystream_hi,
short[] keystream_lo) {
short[] keystream_hi,
short[] keystream_lo) {
for (short i = 0; i < nwords; i++) {
// 生成一个关键字 -> tmp[0]=lo, tmp[1]=hi
zuc256GenerateKeyword(zuc256GenerateKeystream_tmp);