hello, congratulation for Mono.
I'm french, so my english is very poor... sorry.
I want to use the hash function of openssl with my code in
mono.
The file .h in C is :
#define SHA_BLOCK 16
typedef struct SHAstate_st
{
unsigned long h0,h1,h2,h3,h4;
unsigned long Nl,Nh;
unsigned long data[SHA_LBLOCK];
int num;
} SHA_CTX;
void SHA1_Init(SHA_CTX *c);
void SHA1_Update(SHA_CTX *c, unsigned char *data, unsigned
long len);
void SHA1_Final(unsigned char *md, SHA_CTX *c);
---------------------------
I have write my wrapper like this :
protected int SHA_BLOCK = 16;
[StructLayout(LayoutKind.Sequential,
CharSet=CharSet.Ansi)]
public struct SHA_CTX
{
public uint h0;
public uint h1;
public uint h2;
public uint h3;
public uint h4;
public uint Nl;
public uint Nh;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
public uint [] data ;
public int num;
}
//chargement de la dll SHA1.so "C"
[DllImport("SHA1")]
public static extern void SHA1_Init(ref SHA_CTX c);
//public static extern void SHA1_Init(IntPtr c);
//chargement de la dll SHA1.dll "C"
[DllImport("SHA1")]
public static extern void SHA1_Update(ref SHA_CTX c, ref
byte [] data, uint len);
//public static extern void SHA1_Update(ref SHA_CTX c,
IntPtr data, uint len);
//public static extern void SHA1_Update(ref SHA_CTX c,
byte * data, uint len);
//chargement de la dll SHA1.dll "C"
[DllImport("SHA1")]
public static extern void SHA1_Final(ref byte [] md, ref
SHA_CTX c);
//public static extern void SHA1_Final(IntPtr md, ref
SHA_CTX c);
//public static extern void SHA1_Final(byte* md, ref
SHA_CTX c);
-----------------------
With the structure, i can acces to the array data ?
And i don't know how to wrapp " unsigned char * " ? my
solutions don't work.
Can you help me please ?
Thank you very much.
Pierre alain.
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