SabreTools/NDecrypt
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Code Issues 11 Packages Projects Releases 20 Wiki Activity

Empty secure area

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This commit is contained in:
Matt Nadareski
2019-04-11 14:43:39 -07:00
parent ed45d2d14e
commit 6fa8867f93
1 changed files with 9 additions and 8 deletions
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17
NDecrypt/Headers/NDSHeader.cs
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@@ -612,8 +612,8 @@ namespace NDecrypt.Headers
/// <summary>
/// Determine if the current file is already decrypted or not
/// </summary>
/// <param name="reader"></param>
/// <returns></returns>
/// <param name="reader">BinaryReader representing the input stream</param>
/// <returns>True if the file has known values for a decrypted file, false otherwise</returns>
private bool CheckIfDecrypted(BinaryReader reader)
{
reader.BaseStream.Seek(0x4000, SeekOrigin.Begin);
@@ -621,7 +621,8 @@ namespace NDecrypt.Headers
uint secondValue = reader.ReadUInt32();
return ((firstValue == 0xE7FFDEFF) && (secondValue == 0xE7FFDEFF))
|| ((firstValue == 0xD0D48B67) && (secondValue == 0x39392F23)); // Edge case for a couple of items
|| ((firstValue == 0xD0D48B67) && (secondValue == 0x39392F23)) // Incorrectly mastered value
|| ((firstValue == 0x00000000) && (secondValue == 0x00000000)); // Empty secure area
}
/// <summary>
@@ -737,8 +738,8 @@ namespace NDecrypt.Headers
/// <summary>
/// Perform a decryption step
/// </summary>
/// <param name="arg1"></param>
/// <param name="arg2"></param>
/// <param name="arg1">First unsigned value to use in decryption</param>
/// <param name="arg2">Second unsigned value to use in decryption</param>
private void Decrypt(ref uint arg1, ref uint arg2)
{
uint a = arg1;
@@ -757,8 +758,8 @@ namespace NDecrypt.Headers
/// <summary>
/// Perform an encryption step
/// </summary>
/// <param name="arg1"></param>
/// <param name="arg2"></param>
/// <param name="arg1">First unsigned value to use in encryption</param>
/// <param name="arg2">Second unsigned value to use in encryption</param>
private void Encrypt(ref uint arg1, ref uint arg2)
{
uint a = arg1;
@@ -797,7 +798,7 @@ namespace NDecrypt.Headers
/// <summary>
/// Update the hashtable
/// </summary>
/// <param name="arg1"></param>
/// <param name="arg1">Value to update the hashtable with</param>
private void UpdateHashtable(byte[] arg1)
{
for (int j = 0; j < 18; j++)