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-rw-r--r--aes-decrypt-table.c6
-rw-r--r--aes-encrypt-table.c6
-rw-r--r--aes-internal.h7
3 files changed, 12 insertions, 7 deletions
diff --git a/aes-decrypt-table.c b/aes-decrypt-table.c
index e2f1efe8..8eceb2bc 100644
--- a/aes-decrypt-table.c
+++ b/aes-decrypt-table.c
@@ -66,9 +66,9 @@ _aes_decrypt_table =
{ 3, 0, 1, 2 },
{ 2, 3, 0, 1 },
{ 1, 2, 3, 0 } },
- { /* sparc_idx, IDX1 and IDX3 shifted by the size of a word */
- { 12, 0, 4, 8 },
- { 4, 8, 12, 0 } },
+ { /* sparc_idx, explained in aes-internal.h */
+ { 14, 2, 6, 10 },
+ { 4, 8, 12, 0 } },
{ /* itable */
{
0x50a7f451,0x5365417e,0xc3a4171a,0x965e273a,
diff --git a/aes-encrypt-table.c b/aes-encrypt-table.c
index 73d59205..89f79673 100644
--- a/aes-encrypt-table.c
+++ b/aes-encrypt-table.c
@@ -77,9 +77,9 @@ _aes_encrypt_table =
{ 1, 2, 3, 0 },
{ 2, 3, 0, 1 },
{ 3, 0, 1, 2 } },
- { /* sparc_idx, IDX1 and IDX3 shifted by the size of a word */
- { 4, 8, 12, 0 },
- { 12, 0, 4, 8 } },
+ { /* sparc_idx, explained in aes-internal.h */
+ { 6, 10, 14, 2 },
+ { 12, 0, 4, 8 } },
{ /* dtable */
{
0xa56363c6,0x847c7cf8,0x997777ee,0x8d7b7bf6,
diff --git a/aes-internal.h b/aes-internal.h
index 0fa8ed00..e79c8b9b 100644
--- a/aes-internal.h
+++ b/aes-internal.h
@@ -45,7 +45,12 @@ struct aes_table
unsigned idx[3][4];
/* Variant of the idx array suitable for the sparc
- * assembler code. */
+ * assembler code.
+ *
+ * sparc_idx[0][i] = idx[0][i] * 4 + 2
+ * sparc_idx[1][i] = idx[2][i] * 4
+ */
+
unsigned sparc_idx [2][4];
uint32_t table[AES_TABLE_SIZE][0x100];