[S390] zcrypt: support for 4096 bit keys for cex3a
Definitions for CEX3 card types are changed to support 4096 bit RSA
keys. Also new structs for the accelerator mode are needed.
Additionaly when checking the length of key parts, the case for bigger
(4096 bit) keys is needed.
Signed-off-by: Felix Beck <felix.beck@de.ibm.com>
Signed-off-by: Ralph Wuerthner <ralph.wuerthner@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/crypto/zcrypt_cex2a.h b/drivers/s390/crypto/zcrypt_cex2a.h
index 8f69d1d..0350665 100644
--- a/drivers/s390/crypto/zcrypt_cex2a.h
+++ b/drivers/s390/crypto/zcrypt_cex2a.h
@@ -51,8 +51,10 @@
#define TYPE50_MEB1_FMT 0x0001
#define TYPE50_MEB2_FMT 0x0002
+#define TYPE50_MEB3_FMT 0x0003
#define TYPE50_CRB1_FMT 0x0011
#define TYPE50_CRB2_FMT 0x0012
+#define TYPE50_CRB3_FMT 0x0013
/* Mod-Exp, with a small modulus */
struct type50_meb1_msg {
@@ -74,6 +76,16 @@
unsigned char message[256];
} __attribute__((packed));
+/* Mod-Exp, with a larger modulus */
+struct type50_meb3_msg {
+ struct type50_hdr header;
+ unsigned short keyblock_type; /* 0x0003 */
+ unsigned char reserved[6];
+ unsigned char exponent[512];
+ unsigned char modulus[512];
+ unsigned char message[512];
+} __attribute__((packed));
+
/* CRT, with a small modulus */
struct type50_crb1_msg {
struct type50_hdr header;
@@ -100,6 +112,19 @@
unsigned char message[256];
} __attribute__((packed));
+/* CRT, with a larger modulus */
+struct type50_crb3_msg {
+ struct type50_hdr header;
+ unsigned short keyblock_type; /* 0x0013 */
+ unsigned char reserved[6];
+ unsigned char p[256];
+ unsigned char q[256];
+ unsigned char dp[256];
+ unsigned char dq[256];
+ unsigned char u[256];
+ unsigned char message[512];
+} __attribute__((packed));
+
/**
* The type 80 response family is associated with a CEX2A card.
*