Allow MIT-0 license as well as Apache-2.0 and ISC (aws#104)

* Allow MIT-0 license as well as Apache-2.0 and ISC

* Add appropriate year range to MIT-0 license
s2n-bignum original commit: awslabs/s2n-bignum@48fb153

s2n-bignum original commit: awslabs/s2n-bignum@f133bad

arm/curve25519/bignum_madd_n25519.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Multiply-add modulo the order of the curve25519/edwards25519 basepoint

arm/curve25519/bignum_madd_n25519_alt.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Multiply-add modulo the order of the curve25519/edwards25519 basepoint

arm/curve25519/bignum_mod_n25519.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Reduce modulo basepoint order, z := x mod n_25519

arm/curve25519/bignum_neg_p25519.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Negate modulo p_25519, z := (-x) mod p_25519, assuming x reduced

arm/curve25519/curve25519_x25519.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // The x25519 function for curve25519

arm/curve25519/curve25519_x25519_alt.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // The x25519 function for curve25519

arm/curve25519/curve25519_x25519_byte.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // The x25519 function for curve25519 (byte array arguments)

arm/curve25519/curve25519_x25519_byte_alt.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // The x25519 function for curve25519 (byte array arguments)

arm/curve25519/curve25519_x25519base.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // The x25519 function for curve25519 on base element 9

arm/curve25519/curve25519_x25519base_alt.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // The x25519 function for curve25519 on base element 9

arm/curve25519/curve25519_x25519base_byte.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // The x25519 function for curve25519 on base element 9 (byte array arguments)

arm/curve25519/curve25519_x25519base_byte_alt.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // The x25519 function for curve25519 on base element 9 (byte array arguments)

arm/curve25519/edwards25519_decode.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Decode compressed 256-bit form of edwards25519 point

arm/curve25519/edwards25519_decode_alt.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Decode compressed 256-bit form of edwards25519 point

arm/curve25519/edwards25519_encode.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Encode edwards25519 point into compressed form as 256-bit number

arm/curve25519/edwards25519_scalarmulbase.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Scalar multiplication for the edwards25519 standard basepoint

arm/curve25519/edwards25519_scalarmulbase_alt.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Scalar multiplication for the edwards25519 standard basepoint

arm/curve25519/edwards25519_scalarmuldouble.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Double scalar multiplication for edwards25519, fresh and base point

arm/curve25519/edwards25519_scalarmuldouble_alt.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Double scalar multiplication for edwards25519, fresh and base point

arm/fastmul/bignum_emontredc_8n.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Extended Montgomery reduce in 8-digit blocks, results in input-output buffer

arm/fastmul/bignum_kmul_16_32.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Multiply z := x * y

arm/fastmul/bignum_kmul_32_64.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Multiply z := x * y

arm/fastmul/bignum_ksqr_16_32.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Square, z := x^2

arm/fastmul/bignum_ksqr_32_64.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Square, z := x^2

arm/generic/bignum_copy_row_from_table.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Given table: uint64_t[height*width], copy table[idx*width...(idx+1)*width-1]

arm/generic/bignum_copy_row_from_table_16_neon.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Given table: uint64_t[height*16], copy table[idx*16...(idx+1)*16-1]

arm/generic/bignum_copy_row_from_table_32_neon.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Given table: uint64_t[height*32], copy table[idx*32...(idx+1)*32-1]

arm/generic/bignum_copy_row_from_table_8n_neon.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Given table: uint64_t[height*width], copy table[idx*width...(idx+1)*width-1]

arm/generic/bignum_ge.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Compare bignums, x >= y

arm/generic/bignum_mul.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Multiply z := x * y

arm/generic/bignum_optsub.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Optionally subtract, z := x - y (if p nonzero) or z := x (if p zero)

arm/generic/bignum_sqr.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Square z := x^2

arm/p384/Makefile

@@ -1,6 +1,6 @@
 #############################################################################
 # Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-# SPDX-License-Identifier: Apache-2.0 OR ISC
+# SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 #############################################################################
 
 # If actually on an ARM8 machine, just use the GNU assembler (as). Otherwise

arm/p384/bignum_add_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Add modulo p_384, z := (x + y) mod p_384, assuming x and y reduced

arm/p384/bignum_bigendian_6.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Convert 6-digit (384-bit) bignum to/from big-endian form

arm/p384/bignum_cmul_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Multiply by a single word modulo p_384, z := (c * x) mod p_384, assuming

arm/p384/bignum_deamont_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Convert from almost-Montgomery form, z := (x / 2^384) mod p_384

arm/p384/bignum_demont_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Convert from Montgomery form z := (x / 2^384) mod p_384, assuming x reduced

arm/p384/bignum_double_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Double modulo p_384, z := (2 * x) mod p_384, assuming x reduced

arm/p384/bignum_half_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Halve modulo p_384, z := (x / 2) mod p_384, assuming x reduced

arm/p384/bignum_littleendian_6.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Convert 6-digit (384-bit) bignum to/from little-endian form

arm/p384/bignum_mod_n384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Reduce modulo group order, z := x mod n_384

arm/p384/bignum_mod_n384_6.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Reduce modulo group order, z := x mod n_384

arm/p384/bignum_mod_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Reduce modulo field characteristic, z := x mod p_384

arm/p384/bignum_mod_p384_6.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Reduce modulo field characteristic, z := x mod p_384

arm/p384/bignum_montmul_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Montgomery multiply, z := (x * y / 2^384) mod p_384

arm/p384/bignum_montmul_p384_alt.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Montgomery multiply, z := (x * y / 2^384) mod p_384

arm/p384/bignum_montsqr_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Montgomery square, z := (x^2 / 2^384) mod p_384

arm/p384/bignum_montsqr_p384_alt.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Montgomery square, z := (x^2 / 2^384) mod p_384

arm/p384/bignum_mux_6.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // 384-bit multiplex/select z := x (if p nonzero) or z := y (if p zero)

arm/p384/bignum_neg_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Negate modulo p_384, z := (-x) mod p_384, assuming x reduced

arm/p384/bignum_nonzero_6.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // 384-bit nonzeroness test, returning 1 if x is nonzero, 0 if x is zero

arm/p384/bignum_optneg_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Optionally negate modulo p_384, z := (-x) mod p_384 (if p nonzero) or

arm/p384/bignum_sub_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Subtract modulo p_384, z := (x - y) mod p_384

arm/p384/bignum_tomont_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Convert to Montgomery form z := (2^384 * x) mod p_384

arm/p384/bignum_triple_p384.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Triple modulo p_384, z := (3 * x) mod p_384

arm/p384/p384_montjadd.S

@@ -1,5 +1,5 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0 OR ISC
+// SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 // ----------------------------------------------------------------------------
 // Point addition on NIST curve P-384 in Montgomery-Jacobian coordinates