denozord/strongswan-ext
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

crypter_t api supports in-place encryption using NULL as output parameter

Browse Source
This commit is contained in:
Martin Willi
2008-04-30 14:02:25 +00:00
parent d691080cfc
commit f5475fa440
4 changed files with 57 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/libstrongswan/plugins/des/des_crypter.c
+28 -8
View File
@@ -1364,10 +1364,15 @@ static void decrypt(private_des_crypter_t *this, chunk_t data, chunk_t iv,
chunk_t *decrypted)
{
des_cblock ivb;
u_int8_t *out;
*decrypted = chunk_alloc(data.len);
out = data.ptr;
if (decrypted)
{
*decrypted = chunk_alloc(data.len);
}
memcpy(&ivb, iv.ptr, sizeof(des_cblock));
des_cbc_encrypt((des_cblock*)(data.ptr), (des_cblock*)(decrypted->ptr),
des_cbc_encrypt((des_cblock*)(data.ptr), (des_cblock*)out,
data.len, this->ks, &ivb, DES_DECRYPT);
}
@@ -1379,10 +1384,15 @@ static void encrypt(private_des_crypter_t *this, chunk_t data, chunk_t iv,
chunk_t *encrypted)
{
des_cblock ivb;
u_int8_t *out;
*encrypted = chunk_alloc(data.len);
out = data.ptr;
if (encrypted)
{
*encrypted = chunk_alloc(data.len);
}
memcpy(&ivb, iv.ptr, sizeof(des_cblock));
des_cbc_encrypt((des_cblock*)(data.ptr), (des_cblock*)(encrypted->ptr),
des_cbc_encrypt((des_cblock*)(data.ptr), (des_cblock*)out,
data.len, this->ks, &ivb, DES_ENCRYPT);
}
@@ -1393,10 +1403,15 @@ static void decrypt3(private_des_crypter_t *this, chunk_t data, chunk_t iv,
chunk_t *decrypted)
{
des_cblock ivb;
u_int8_t *out;
*decrypted = chunk_alloc(data.len);
out = data.ptr;
if (decrypted)
{
*decrypted = chunk_alloc(data.len);
}
memcpy(&ivb, iv.ptr, sizeof(des_cblock));
des_ede3_cbc_encrypt((des_cblock*)(data.ptr), (des_cblock*)(decrypted->ptr),
des_ede3_cbc_encrypt((des_cblock*)(data.ptr), (des_cblock*)out,
data.len, this->ks3[0], this->ks3[1], this->ks3[2],
&ivb, DES_DECRYPT);
}
@@ -1408,10 +1423,15 @@ static void encrypt3(private_des_crypter_t *this, chunk_t data, chunk_t iv,
chunk_t *encrypted)
{
des_cblock ivb;
u_int8_t *out;
*encrypted = chunk_alloc(data.len);
out = data.ptr;
if (encrypted)
{
*encrypted = chunk_alloc(data.len);
}
memcpy(&ivb, iv.ptr, sizeof(des_cblock));
des_ede3_cbc_encrypt((des_cblock*)(data.ptr), (des_cblock*)(encrypted->ptr),
des_ede3_cbc_encrypt((des_cblock*)(data.ptr), (des_cblock*)out,
data.len, this->ks3[0], this->ks3[1], this->ks3[2],
&ivb, DES_ENCRYPT);
}