From 079f309fd5079d505584a38e837b8b505be38e27 Mon Sep 17 00:00:00 2001
From: Tiago Oliveira <tfaoliveira@gmail.com>
Date: Sun, 22 Oct 2023 14:16:20 +0200
Subject: [PATCH] armv7m: shake*

---
 src/crypto_xof/shake128/armv7m/ref/Makefile     |  3 +++
 .../shake128/armv7m/ref/include/api.h           | 17 +++++++++++++++++
 .../shake128/armv7m/ref/shake128.jinc           | 13 +++++++++++++
 src/crypto_xof/shake128/armv7m/ref/xof.jazz     | 11 +++++++++++
 src/crypto_xof/shake256/armv7m/ref/Makefile     |  3 +++
 .../shake256/armv7m/ref/include/api.h           | 17 +++++++++++++++++
 .../shake256/armv7m/ref/shake256.jinc           | 13 +++++++++++++
 src/crypto_xof/shake256/armv7m/ref/xof.jazz     | 10 ++++++++++
 8 files changed, 87 insertions(+)
 create mode 100644 src/crypto_xof/shake128/armv7m/ref/Makefile
 create mode 100644 src/crypto_xof/shake128/armv7m/ref/include/api.h
 create mode 100644 src/crypto_xof/shake128/armv7m/ref/shake128.jinc
 create mode 100644 src/crypto_xof/shake128/armv7m/ref/xof.jazz
 create mode 100644 src/crypto_xof/shake256/armv7m/ref/Makefile
 create mode 100644 src/crypto_xof/shake256/armv7m/ref/include/api.h
 create mode 100644 src/crypto_xof/shake256/armv7m/ref/shake256.jinc
 create mode 100644 src/crypto_xof/shake256/armv7m/ref/xof.jazz

diff --git a/src/crypto_xof/shake128/armv7m/ref/Makefile b/src/crypto_xof/shake128/armv7m/ref/Makefile
new file mode 100644
index 00000000..72547a45
--- /dev/null
+++ b/src/crypto_xof/shake128/armv7m/ref/Makefile
@@ -0,0 +1,3 @@
+override JFLAGS += -arch arm-m4
+SRCS := xof.jazz
+include ../../../../Makefile.common
diff --git a/src/crypto_xof/shake128/armv7m/ref/include/api.h b/src/crypto_xof/shake128/armv7m/ref/include/api.h
new file mode 100644
index 00000000..a826fc50
--- /dev/null
+++ b/src/crypto_xof/shake128/armv7m/ref/include/api.h
@@ -0,0 +1,17 @@
+#ifndef JADE_XOF_shake128_armv7m_ref_API_H
+#define JADE_XOF_shake128_armv7m_ref_API_H
+
+#define JADE_XOF_shake128_armv7m_ref_ALGNAME "SHAKE128"
+#define JADE_XOF_shake128_armv7m_ref_ARCH    "armv7m"
+#define JADE_XOF_shake128_armv7m_ref_IMPL    "ref"
+
+#include <stdint.h>
+
+int jade_xof_shake128_armv7m_ref(
+ uint8_t *output,
+ uint32_t output_length,
+ const uint8_t *input,
+ uint32_t input_length
+);
+
+#endif
diff --git a/src/crypto_xof/shake128/armv7m/ref/shake128.jinc b/src/crypto_xof/shake128/armv7m/ref/shake128.jinc
new file mode 100644
index 00000000..80cab943
--- /dev/null
+++ b/src/crypto_xof/shake128/armv7m/ref/shake128.jinc
@@ -0,0 +1,13 @@
+from Jade require "common/keccak/keccak1600/armv7m/ref/keccak1600.jinc"
+
+inline fn __shake128_ref(reg u32 out outlen in inlen)
+{
+  reg u32 rate trail_byte;
+
+  trail_byte = 0x1F;
+  rate = (1344/8);
+
+  __keccak1600_ref(out, outlen, in, inlen, trail_byte, rate);
+}
+
+
diff --git a/src/crypto_xof/shake128/armv7m/ref/xof.jazz b/src/crypto_xof/shake128/armv7m/ref/xof.jazz
new file mode 100644
index 00000000..3191b09b
--- /dev/null
+++ b/src/crypto_xof/shake128/armv7m/ref/xof.jazz
@@ -0,0 +1,11 @@
+require "shake128.jinc"
+
+export fn jade_xof_shake128_armv7m_ref(reg u32 output output_length input input_length) -> reg u32
+{
+  reg u32 r;
+  __shake128_ref(output, output_length, input, input_length);
+  r = 0;
+  return r;
+}
+
+
diff --git a/src/crypto_xof/shake256/armv7m/ref/Makefile b/src/crypto_xof/shake256/armv7m/ref/Makefile
new file mode 100644
index 00000000..72547a45
--- /dev/null
+++ b/src/crypto_xof/shake256/armv7m/ref/Makefile
@@ -0,0 +1,3 @@
+override JFLAGS += -arch arm-m4
+SRCS := xof.jazz
+include ../../../../Makefile.common
diff --git a/src/crypto_xof/shake256/armv7m/ref/include/api.h b/src/crypto_xof/shake256/armv7m/ref/include/api.h
new file mode 100644
index 00000000..44bb2fc4
--- /dev/null
+++ b/src/crypto_xof/shake256/armv7m/ref/include/api.h
@@ -0,0 +1,17 @@
+#ifndef JADE_XOF_shake256_armv7m_ref_API_H
+#define JADE_XOF_shake256_armv7m_ref_API_H
+
+#define JADE_XOF_shake256_armv7m_ref_ALGNAME "SHAKE256"
+#define JADE_XOF_shake256_armv7m_ref_ARCH    "armv7m"
+#define JADE_XOF_shake256_armv7m_ref_IMPL    "ref"
+
+#include <stdint.h>
+
+int jade_xof_shake256_armv7m_ref(
+ uint8_t *output,
+ uint32_t output_length,
+ const uint8_t *input,
+ uint32_t input_length
+);
+
+#endif
diff --git a/src/crypto_xof/shake256/armv7m/ref/shake256.jinc b/src/crypto_xof/shake256/armv7m/ref/shake256.jinc
new file mode 100644
index 00000000..889c9782
--- /dev/null
+++ b/src/crypto_xof/shake256/armv7m/ref/shake256.jinc
@@ -0,0 +1,13 @@
+from Jade require "common/keccak/keccak1600/armv7m/ref/keccak1600.jinc"
+
+inline fn __shake256_ref(reg u32 out outlen in inlen)
+{
+  reg u32 rate trail_byte;
+
+  trail_byte = 0x1F;
+  rate = (1088/8);
+
+  __keccak1600_ref(out, outlen, in, inlen, trail_byte, rate);
+}
+
+
diff --git a/src/crypto_xof/shake256/armv7m/ref/xof.jazz b/src/crypto_xof/shake256/armv7m/ref/xof.jazz
new file mode 100644
index 00000000..d5b91912
--- /dev/null
+++ b/src/crypto_xof/shake256/armv7m/ref/xof.jazz
@@ -0,0 +1,10 @@
+require "shake256.jinc"
+
+export fn jade_xof_shake256_armv7m_ref(reg u32 output output_length input input_length) -> reg u32
+{
+  reg u32 r;
+  __shake256_ref(output, output_length, input, input_length);
+  r = 0;
+  return r;
+}
+