Fixed chacha20 get updated IV

Fixes #26998

Addresses an issue where the EVP_CIPHER_CTX_get_updated_iv() function
does not properly return the updated IV for the ChaCha20 cipher.
chacha20_get_ctx_params was updated to be sensitive to the
OSSL_CIPHER_PARAM_UPDATED_IV parameter.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <ppzgs1@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/27484)

diff --git a/providers/implementations/ciphers/cipher_chacha20.c b/providers/implementations/ciphers/cipher_chacha20.c
index 3d03e6b092667c00ad101a6991728628b031ab5b..fd550188a16c07c0a7e9346f50cca6be057a8ee1 100644 (file)
--- a/providers/implementations/ciphers/cipher_chacha20.c
+++ b/providers/implementations/ciphers/cipher_chacha20.c
@@ -10,6 +10,7 @@
 /* Dispatch functions for chacha20 cipher */
 
 #include <openssl/proverr.h>
+#include <openssl/params.h>
 #include "cipher_chacha20.h"
 #include "prov/implementations.h"
 #include "prov/providercommon.h"
@@ -31,6 +32,13 @@ static OSSL_FUNC_cipher_settable_ctx_params_fn chacha20_settable_ctx_params;
 #define chacha20_update ossl_cipher_generic_stream_update
 #define chacha20_final ossl_cipher_generic_stream_final
 #define chacha20_gettable_params ossl_cipher_generic_gettable_params
+#define CHACHA_U32TOU8(ct, st) \
+    do { \
+        (ct)[3] = (unsigned char)((st) >> 24); \
+        (ct)[2] = (unsigned char)((st) >> 16); \
+        (ct)[1] = (unsigned char)((st) >>  8); \
+        (ct)[0] = (unsigned char)(st); \
+    } while (0)
 
 void ossl_chacha20_initctx(PROV_CHACHA20_CTX *ctx)
 {
@@ -94,6 +102,8 @@ static int chacha20_get_params(OSSL_PARAM params[])
 
 static int chacha20_get_ctx_params(void *vctx, OSSL_PARAM params[])
 {
+    PROV_CHACHA20_CTX *ctx = (PROV_CHACHA20_CTX *)vctx;
+    unsigned char ivbuf[CHACHA20_IVLEN];
     OSSL_PARAM *p;
 
     p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_IVLEN);
@@ -106,13 +116,24 @@ static int chacha20_get_ctx_params(void *vctx, OSSL_PARAM params[])
         ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
         return 0;
     }
-
+    p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_UPDATED_IV);
+    if (p != NULL) {
+        CHACHA_U32TOU8(ivbuf, ctx->counter[0]);
+        CHACHA_U32TOU8(ivbuf + 4, ctx->counter[1]);
+        CHACHA_U32TOU8(ivbuf + 8, ctx->counter[2]);
+        CHACHA_U32TOU8(ivbuf + 12, ctx->counter[3]);
+        if (!OSSL_PARAM_set_octet_string(p, ivbuf, CHACHA20_IVLEN)) {
+            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
+            return 0;
+        }
+    }
     return 1;
 }
 
 static const OSSL_PARAM chacha20_known_gettable_ctx_params[] = {
     OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
     OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
+    OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_UPDATED_IV, NULL, 0),
     OSSL_PARAM_END
 };
 const OSSL_PARAM *chacha20_gettable_ctx_params(ossl_unused void *cctx,

diff --git a/providers/implementations/ciphers/cipher_chacha20_hw.c b/providers/implementations/ciphers/cipher_chacha20_hw.c
index 3b03bc81ed5a5913ce774385dbd175a0b75a494b..72fad9f2e83e46d5ca6f4891c60ad63f16d7fc9c 100644 (file)
--- a/providers/implementations/ciphers/cipher_chacha20_hw.c
+++ b/providers/implementations/ciphers/cipher_chacha20_hw.c
@@ -55,12 +55,8 @@ static int chacha20_cipher(PROV_CIPHER_CTX *bctx, unsigned char *out,
         if (inl == 0)
             return 1;
 
-        if (n == CHACHA_BLK_SIZE) {
+        if (n == CHACHA_BLK_SIZE)
             ctx->partial_len = 0;
-            ctx->counter[0]++;
-            if (ctx->counter[0] == 0)
-                ctx->counter[1]++;
-        }
     }
 
     rem = (unsigned int)(inl % CHACHA_BLK_SIZE);
@@ -102,6 +98,11 @@ static int chacha20_cipher(PROV_CIPHER_CTX *bctx, unsigned char *out,
         memset(ctx->buf, 0, sizeof(ctx->buf));
         ChaCha20_ctr32(ctx->buf, ctx->buf, CHACHA_BLK_SIZE,
                        ctx->key.d, ctx->counter);
+
+        /* propagate counter overflow */
+        if (++ctx->counter[0] == 0)
+            ctx->counter[1]++;
+
         for (n = 0; n < rem; n++)
             out[n] = in[n] ^ ctx->buf[n];
         ctx->partial_len = rem;

diff --git a/test/evp_test.c b/test/evp_test.c
index ea014d11b95a258555700d10e007d4a01d75b721..65ca0ea6cf7939fd11e5983e8c165555bca049cf 100644 (file)
--- a/test/evp_test.c
+++ b/test/evp_test.c
@@ -1510,9 +1510,8 @@ static int cipher_test_enc(EVP_TEST *t, int enc, size_t out_misalign,
         /* Some (e.g., GCM) tests use IVs longer than EVP_MAX_IV_LENGTH. */
         unsigned char iv[128];
         if (!TEST_true(EVP_CIPHER_CTX_get_updated_iv(ctx, iv, sizeof(iv)))
-            || ((EVP_CIPHER_get_flags(expected->cipher) & EVP_CIPH_CUSTOM_IV) == 0
-                && !TEST_mem_eq(expected->next_iv, expected->iv_len, iv,
-                                expected->iv_len))) {
+            || !TEST_mem_eq(expected->next_iv, expected->iv_len, iv,
+                            expected->iv_len)) {
             t->err = "INVALID_NEXT_IV";
             goto err;
         } else {

diff --git a/test/recipes/30-test_evp_data/evpciph_chacha.txt b/test/recipes/30-test_evp_data/evpciph_chacha.txt
index 52a39c03f8f2ffbf2073a7df6749405dcd538cd8..89dc6326d1fde15a717c98b4d4b77cbe8aebaf69 100644 (file)
--- a/test/recipes/30-test_evp_data/evpciph_chacha.txt
+++ b/test/recipes/30-test_evp_data/evpciph_chacha.txt
@@ -19,6 +19,7 @@ Key = 0000000000000000000000000000000000000000000000000000000000000000
 IV = 00000000000000000000000000000000
 Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 76b8e0ada0f13d90405d6ae55386bd28bdd219b8a08ded1aa836efcc8b770dc7da41597c5157488d7724e03fb8d84a376a43b8f41518a11cc387b669b2ee6586
+NextIV = 01000000000000000000000000000000
 
 # A.1 Test Vector 2
 Cipher = chacha20
@@ -26,6 +27,7 @@ Key = 0000000000000000000000000000000000000000000000000000000000000000
 IV = 01000000000000000000000000000000
 Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 9f07e7be5551387a98ba977c732d080dcb0f29a048e3656912c6533e32ee7aed29b721769ce64e43d57133b074d839d531ed1f28510afb45ace10a1f4b794d6f
+NextIV = 02000000000000000000000000000000
 
 # A.2 Test Vector 1 is the same as A.1 Test Vector 1
 # A.2 Test Vector 2
@@ -35,6 +37,7 @@ Key = 0000000000000000000000000000000000000000000000000000000000000001
 IV = 01000000000000000000000000000002
 Plaintext = 416e79207375626d697373696f6e20746f20746865204945544620696e74656e6465642062792074686520436f6e7472696275746f7220666f72207075626c69636174696f6e20617320616c6c206f722070617274206f6620616e204945544620496e7465726e65742d4472616674206f722052464320616e6420616e792073746174656d656e74206d6164652077697468696e2074686520636f6e74657874206f6620616e204945544620616374697669747920697320636f6e7369646572656420616e20224945544620436f6e747269627574696f6e222e20537563682073746174656d656e747320696e636c756465206f72616c2073746174656d656e747320696e20494554462073657373696f6e732c2061732077656c6c206173207772697474656e20616e6420656c656374726f6e696320636f6d6d756e69636174696f6e73206d61646520617420616e792074696d65206f7220706c6163652c207768696368206172652061646472657373656420746f
 Ciphertext = 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
+NextIV = 07000000000000000000000000000002
 
 # A.2 Test Vector 3
 Cipher = chacha20
@@ -43,6 +46,7 @@ Key = 1c9240a5eb55d38af333888604f6b5f0473917c1402b80099dca5cbc207075c0
 IV = 2a000000000000000000000000000002
 Plaintext = 2754776173206272696c6c69672c20616e642074686520736c6974687920746f7665730a446964206779726520616e642067696d626c6520696e2074686520776162653a0a416c6c206d696d737920776572652074686520626f726f676f7665732c0a416e6420746865206d6f6d65207261746873206f757467726162652e
 Ciphertext = 62e6347f95ed87a45ffae7426f27a1df5fb69110044c0d73118effa95b01e5cf166d3df2d721caf9b21e5fb14c616871fd84c54f9d65b283196c7fe4f60553ebf39c6402c42234e32a356b3e764312a61a5532055716ead6962568f87d3f3f7704c6a8d1bcd1bf4d50d6154b6da731b187b58dfd728afa36757a797ac188d1
+NextIV = 2c000000000000000000000000000002
 
 Title = Chacha20
 
@@ -51,90 +55,105 @@ Key = 0000000000000000000000000000000000000000000000000000000000000001
 IV = 00000000000000000000000000000000
 Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 4540f05a9f1fb296d7736e7b208e3c96eb4fe1834688d2604f450952ed432d41bbe2a0b6ea7566d2a5d1e7e20d42af2c53d792b1c43fea817e9ad275ae546963
+NextIV = 01000000000000000000000000000000
 
 Cipher = chacha20
 Key = 0000000000000000000000000000000000000000000000000000000000000000
 IV = 00000000000000000000000000000001
 Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = de9cba7bf3d69ef5e786dc63973f653a0b49e015adbff7134fcb7df137821031e85a050278a7084527214f73efc7fa5b5277062eb7a0433e445f41e31afab757
+NextIV = 01000000000000000000000000000001
 
 Cipher = chacha20
 Key = 0000000000000000000000000000000000000000000000000000000000000000
 IV = 00000000000000000100000000000000
 Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = ef3fdfd6c61578fbf5cf35bd3dd33b8009631634d21e42ac33960bd138e50d32111e4caf237ee53ca8ad6426194a88545ddc497a0b466e7d6bbdb0041b2f586b
+NextIV = 01000000000000000100000000000000
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 04000000000000000001020304050607
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 04000000000000000001020304050607
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 08000000000000000001020304050607
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 0a000000000000000001020304050607
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 09000000000000000001020304050607
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 0b000000000000000001020304050607
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 0c000000000000000001020304050607
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 0d000000000000000001020304050607
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 0e000000000000000001020304050607
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 0f000000000000000001020304050607
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 10000000000000000001020304050607
 
 Cipher = chacha20
 Key = 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
 IV = 00000000000000000001020304050607
 Plaintext = 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 Ciphertext = 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
+NextIV = 11000000000000000001020304050607
 
 # RFC7539
 Cipher = chacha20-poly1305