diff --git a/include/secp256k1.h b/include/secp256k1.h
index 076a7962d3f5a..36051b540eed5 100644
--- a/include/secp256k1.h
+++ b/include/secp256k1.h
@@ -592,6 +592,13 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_create(
  *                      If this function returns 0, seckey will be some
  *                      unspecified value. (cannot be NULL)
  */
+SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_negate(
+    const secp256k1_context* ctx,
+    unsigned char *seckey
+) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2);
+
+/** Same as secp256k1_ec_seckey_negate, but DEPRECATED. Will be removed in
+ *  future versions. */
 SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_negate(
     const secp256k1_context* ctx,
     unsigned char *seckey
@@ -621,6 +628,14 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_negate(
  *                  32-byte arrays the chance of being out of range is
  *                  negligible (around 1 in 2^128). (cannot be NULL)
  */
+SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_tweak_add(
+    const secp256k1_context* ctx,
+    unsigned char *seckey,
+    const unsigned char *tweak
+) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3);
+
+/** Same as secp256k1_ec_seckey_tweak_add, but DEPRECATED. Will be removed in
+ *  future versions. */
 SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_add(
     const secp256k1_context* ctx,
     unsigned char *seckey,
@@ -655,6 +670,14 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_add(
  *                 32-byte arrays the chance of being out of range is
  *                 negligible (around 1 in 2^128). (cannot be NULL)
  */
+SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_seckey_tweak_mul(
+    const secp256k1_context* ctx,
+    unsigned char *seckey,
+    const unsigned char *tweak
+) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3);
+
+/** Same as secp256k1_ec_seckey_tweak_mul, but DEPRECATED. Will be removed in
+ *  future versions. */
 SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_tweak_mul(
     const secp256k1_context* ctx,
     unsigned char *seckey,
diff --git a/src/secp256k1.c b/src/secp256k1.c
index d205e3072e508..de66be5785ab5 100644
--- a/src/secp256k1.c
+++ b/src/secp256k1.c
@@ -554,7 +554,7 @@ int secp256k1_ec_pubkey_create(const secp256k1_context* ctx, secp256k1_pubkey *p
     return ret;
 }
 
-int secp256k1_ec_privkey_negate(const secp256k1_context* ctx, unsigned char *seckey) {
+int secp256k1_ec_seckey_negate(const secp256k1_context* ctx, unsigned char *seckey) {
     secp256k1_scalar sec;
     int ret = 0;
     VERIFY_CHECK(ctx != NULL);
@@ -569,6 +569,10 @@ int secp256k1_ec_privkey_negate(const secp256k1_context* ctx, unsigned char *sec
     return ret;
 }
 
+int secp256k1_ec_privkey_negate(const secp256k1_context* ctx, unsigned char *seckey) {
+    return secp256k1_ec_seckey_negate(ctx, seckey);
+}
+
 int secp256k1_ec_pubkey_negate(const secp256k1_context* ctx, secp256k1_pubkey *pubkey) {
     int ret = 0;
     secp256k1_ge p;
@@ -584,7 +588,7 @@ int secp256k1_ec_pubkey_negate(const secp256k1_context* ctx, secp256k1_pubkey *p
     return ret;
 }
 
-int secp256k1_ec_privkey_tweak_add(const secp256k1_context* ctx, unsigned char *seckey, const unsigned char *tweak) {
+int secp256k1_ec_seckey_tweak_add(const secp256k1_context* ctx, unsigned char *seckey, const unsigned char *tweak) {
     secp256k1_scalar term;
     secp256k1_scalar sec;
     int ret = 0;
@@ -605,6 +609,10 @@ int secp256k1_ec_privkey_tweak_add(const secp256k1_context* ctx, unsigned char *
     return ret;
 }
 
+int secp256k1_ec_privkey_tweak_add(const secp256k1_context* ctx, unsigned char *seckey, const unsigned char *tweak) {
+    return secp256k1_ec_seckey_tweak_add(ctx, seckey, tweak);
+}
+
 int secp256k1_ec_pubkey_tweak_add(const secp256k1_context* ctx, secp256k1_pubkey *pubkey, const unsigned char *tweak) {
     secp256k1_ge p;
     secp256k1_scalar term;
@@ -629,7 +637,7 @@ int secp256k1_ec_pubkey_tweak_add(const secp256k1_context* ctx, secp256k1_pubkey
     return ret;
 }
 
-int secp256k1_ec_privkey_tweak_mul(const secp256k1_context* ctx, unsigned char *seckey, const unsigned char *tweak) {
+int secp256k1_ec_seckey_tweak_mul(const secp256k1_context* ctx, unsigned char *seckey, const unsigned char *tweak) {
     secp256k1_scalar factor;
     secp256k1_scalar sec;
     int ret = 0;
@@ -649,6 +657,10 @@ int secp256k1_ec_privkey_tweak_mul(const secp256k1_context* ctx, unsigned char *
     return ret;
 }
 
+int secp256k1_ec_privkey_tweak_mul(const secp256k1_context* ctx, unsigned char *seckey, const unsigned char *tweak) {
+    return secp256k1_ec_seckey_tweak_mul(ctx, seckey, tweak);
+}
+
 int secp256k1_ec_pubkey_tweak_mul(const secp256k1_context* ctx, secp256k1_pubkey *pubkey, const unsigned char *tweak) {
     secp256k1_ge p;
     secp256k1_scalar factor;
diff --git a/src/tests.c b/src/tests.c
index 534f5bbfd6290..324b60cf1e79f 100644
--- a/src/tests.c
+++ b/src/tests.c
@@ -3989,13 +3989,13 @@ void run_eckey_edge_case_test(void) {
     pubkey_negone = pubkey;
     /* Tweak of zero leaves the value unchanged. */
     memset(ctmp2, 0, 32);
-    CHECK(secp256k1_ec_privkey_tweak_add(ctx, ctmp, ctmp2) == 1);
+    CHECK(secp256k1_ec_seckey_tweak_add(ctx, ctmp, ctmp2) == 1);
     CHECK(memcmp(orderc, ctmp, 31) == 0 && ctmp[31] == 0x40);
     memcpy(&pubkey2, &pubkey, sizeof(pubkey));
     CHECK(secp256k1_ec_pubkey_tweak_add(ctx, &pubkey, ctmp2) == 1);
     CHECK(memcmp(&pubkey, &pubkey2, sizeof(pubkey)) == 0);
     /* Multiply tweak of zero zeroizes the output. */
-    CHECK(secp256k1_ec_privkey_tweak_mul(ctx, ctmp, ctmp2) == 0);
+    CHECK(secp256k1_ec_seckey_tweak_mul(ctx, ctmp, ctmp2) == 0);
     CHECK(memcmp(zeros, ctmp, 32) == 0);
     CHECK(secp256k1_ec_pubkey_tweak_mul(ctx, &pubkey, ctmp2) == 0);
     CHECK(memcmp(&pubkey, zeros, sizeof(pubkey)) == 0);
@@ -4007,20 +4007,20 @@ void run_eckey_edge_case_test(void) {
     ctmp2[31] = 0x01;
     CHECK(secp256k1_ec_seckey_verify(ctx, ctmp2) == 1);
     CHECK(secp256k1_ec_seckey_verify(ctx, ctmp) == 0);
-    CHECK(secp256k1_ec_privkey_tweak_add(ctx, ctmp, ctmp2) == 0);
+    CHECK(secp256k1_ec_seckey_tweak_add(ctx, ctmp, ctmp2) == 0);
     CHECK(memcmp(zeros, ctmp, 32) == 0);
     memcpy(ctmp, orderc, 32);
-    CHECK(secp256k1_ec_privkey_tweak_mul(ctx, ctmp, ctmp2) == 0);
+    CHECK(secp256k1_ec_seckey_tweak_mul(ctx, ctmp, ctmp2) == 0);
     CHECK(memcmp(zeros, ctmp, 32) == 0);
     /* If seckey_tweak_add or seckey_tweak_mul are called with an overflowing
     tweak, the seckey is zeroized. */
     memcpy(ctmp, orderc, 32);
     ctmp[31] = 0x40;
-    CHECK(secp256k1_ec_privkey_tweak_add(ctx, ctmp, orderc) == 0);
+    CHECK(secp256k1_ec_seckey_tweak_add(ctx, ctmp, orderc) == 0);
     CHECK(memcmp(zeros, ctmp, 32) == 0);
     memcpy(ctmp, orderc, 32);
     ctmp[31] = 0x40;
-    CHECK(secp256k1_ec_privkey_tweak_mul(ctx, ctmp, orderc) == 0);
+    CHECK(secp256k1_ec_seckey_tweak_mul(ctx, ctmp, orderc) == 0);
     CHECK(memcmp(zeros, ctmp, 32) == 0);
     memcpy(ctmp, orderc, 32);
     ctmp[31] = 0x40;
@@ -4039,7 +4039,7 @@ void run_eckey_edge_case_test(void) {
     ctmp[31] = 0x40;
     memset(ctmp2, 0, 32);
     ctmp2[31] = 1;
-    CHECK(secp256k1_ec_privkey_tweak_add(ctx, ctmp2, ctmp) == 0);
+    CHECK(secp256k1_ec_seckey_tweak_add(ctx, ctmp2, ctmp) == 0);
     CHECK(memcmp(zeros, ctmp2, 32) == 0);
     ctmp2[31] = 1;
     CHECK(secp256k1_ec_pubkey_tweak_add(ctx, &pubkey, ctmp2) == 0);
@@ -4047,7 +4047,7 @@ void run_eckey_edge_case_test(void) {
     memcpy(&pubkey, &pubkey2, sizeof(pubkey));
     /* Tweak computation wraps and results in a key of 1. */
     ctmp2[31] = 2;
-    CHECK(secp256k1_ec_privkey_tweak_add(ctx, ctmp2, ctmp) == 1);
+    CHECK(secp256k1_ec_seckey_tweak_add(ctx, ctmp2, ctmp) == 1);
     CHECK(memcmp(ctmp2, zeros, 31) == 0 && ctmp2[31] == 1);
     ctmp2[31] = 2;
     CHECK(secp256k1_ec_pubkey_tweak_add(ctx, &pubkey, ctmp2) == 1);
@@ -4095,16 +4095,16 @@ void run_eckey_edge_case_test(void) {
     CHECK(ecount == 2);
     ecount = 0;
     memset(ctmp2, 0, 32);
-    CHECK(secp256k1_ec_privkey_tweak_add(ctx, NULL, ctmp2) == 0);
+    CHECK(secp256k1_ec_seckey_tweak_add(ctx, NULL, ctmp2) == 0);
     CHECK(ecount == 1);
-    CHECK(secp256k1_ec_privkey_tweak_add(ctx, ctmp, NULL) == 0);
+    CHECK(secp256k1_ec_seckey_tweak_add(ctx, ctmp, NULL) == 0);
     CHECK(ecount == 2);
     ecount = 0;
     memset(ctmp2, 0, 32);
     ctmp2[31] = 1;
-    CHECK(secp256k1_ec_privkey_tweak_mul(ctx, NULL, ctmp2) == 0);
+    CHECK(secp256k1_ec_seckey_tweak_mul(ctx, NULL, ctmp2) == 0);
     CHECK(ecount == 1);
-    CHECK(secp256k1_ec_privkey_tweak_mul(ctx, ctmp, NULL) == 0);
+    CHECK(secp256k1_ec_seckey_tweak_mul(ctx, ctmp, NULL) == 0);
     CHECK(ecount == 2);
     ecount = 0;
     CHECK(secp256k1_ec_pubkey_create(ctx, NULL, ctmp) == 0);
@@ -4184,26 +4184,31 @@ void run_eckey_negate_test(void) {
     random_scalar_order_b32(seckey);
     memcpy(seckey_tmp, seckey, 32);
 
-     /* Verify negation changes the key and changes it back */
-    CHECK(secp256k1_ec_privkey_negate(ctx, seckey) == 1);
+    /* Verify negation changes the key and changes it back */
+    CHECK(secp256k1_ec_seckey_negate(ctx, seckey) == 1);
     CHECK(memcmp(seckey, seckey_tmp, 32) != 0);
-    CHECK(secp256k1_ec_privkey_negate(ctx, seckey) == 1);
+    CHECK(secp256k1_ec_seckey_negate(ctx, seckey) == 1);
+    CHECK(memcmp(seckey, seckey_tmp, 32) == 0);
+
+    /* Check that privkey alias gives same result */
+    CHECK(secp256k1_ec_seckey_negate(ctx, seckey) == 1);
+    CHECK(secp256k1_ec_privkey_negate(ctx, seckey_tmp) == 1);
     CHECK(memcmp(seckey, seckey_tmp, 32) == 0);
 
-     /* Negating all 0s fails */
+    /* Negating all 0s fails */
     memset(seckey, 0, 32);
     memset(seckey_tmp, 0, 32);
-    CHECK(secp256k1_ec_privkey_negate(ctx, seckey) == 0);
+    CHECK(secp256k1_ec_seckey_negate(ctx, seckey) == 0);
     /* Check that seckey is not modified */
     CHECK(memcmp(seckey, seckey_tmp, 32) == 0);
 
     /* Negating an overflowing seckey fails and the seckey is zeroed. In this
-     * test, the seckey has 16 random bytes to ensure that ec_privkey_negate
+     * test, the seckey has 16 random bytes to ensure that ec_seckey_negate
      * doesn't just set seckey to a constant value in case of failure. */
     random_scalar_order_b32(seckey);
     memset(seckey, 0xFF, 16);
     memset(seckey_tmp, 0, 32);
-    CHECK(secp256k1_ec_privkey_negate(ctx, seckey) == 0);
+    CHECK(secp256k1_ec_seckey_negate(ctx, seckey) == 0);
     CHECK(memcmp(seckey, seckey_tmp, 32) == 0);
 }
 
@@ -4346,15 +4351,22 @@ void test_ecdsa_end_to_end(void) {
     if (secp256k1_rand_int(3) == 0) {
         int ret1;
         int ret2;
+        int ret3;
         unsigned char rnd[32];
+        unsigned char privkey_tmp[32];
         secp256k1_pubkey pubkey2;
         secp256k1_rand256_test(rnd);
-        ret1 = secp256k1_ec_privkey_tweak_add(ctx, privkey, rnd);
+        memcpy(privkey_tmp, privkey, 32);
+        ret1 = secp256k1_ec_seckey_tweak_add(ctx, privkey, rnd);
         ret2 = secp256k1_ec_pubkey_tweak_add(ctx, &pubkey, rnd);
+        /* Check that privkey alias gives same result */
+        ret3 = secp256k1_ec_privkey_tweak_add(ctx, privkey_tmp, rnd);
         CHECK(ret1 == ret2);
+        CHECK(ret2 == ret3);
         if (ret1 == 0) {
             return;
         }
+        CHECK(memcmp(privkey, privkey_tmp, 32) == 0);
         CHECK(secp256k1_ec_pubkey_create(ctx, &pubkey2, privkey) == 1);
         CHECK(memcmp(&pubkey, &pubkey2, sizeof(pubkey)) == 0);
     }
@@ -4363,15 +4375,22 @@ void test_ecdsa_end_to_end(void) {
     if (secp256k1_rand_int(3) == 0) {
         int ret1;
         int ret2;
+        int ret3;
         unsigned char rnd[32];
+        unsigned char privkey_tmp[32];
         secp256k1_pubkey pubkey2;
         secp256k1_rand256_test(rnd);
-        ret1 = secp256k1_ec_privkey_tweak_mul(ctx, privkey, rnd);
+        memcpy(privkey_tmp, privkey, 32);
+        ret1 = secp256k1_ec_seckey_tweak_mul(ctx, privkey, rnd);
         ret2 = secp256k1_ec_pubkey_tweak_mul(ctx, &pubkey, rnd);
+        /* Check that privkey alias gives same result */
+        ret3 = secp256k1_ec_privkey_tweak_mul(ctx, privkey_tmp, rnd);
         CHECK(ret1 == ret2);
+        CHECK(ret2 == ret3);
         if (ret1 == 0) {
             return;
         }
+        CHECK(memcmp(privkey, privkey_tmp, 32) == 0);
         CHECK(secp256k1_ec_pubkey_create(ctx, &pubkey2, privkey) == 1);
         CHECK(memcmp(&pubkey, &pubkey2, sizeof(pubkey)) == 0);
     }
diff --git a/src/valgrind_ctime_test.c b/src/valgrind_ctime_test.c
index 04c06d498fe58..5d26244dba0a4 100644
--- a/src/valgrind_ctime_test.c
+++ b/src/valgrind_ctime_test.c
@@ -73,19 +73,19 @@ int main(void) {
     CHECK(ret == 1);
 
     VALGRIND_MAKE_MEM_UNDEFINED(key, 32);
-    ret = secp256k1_ec_privkey_negate(ctx, key);
+    ret = secp256k1_ec_seckey_negate(ctx, key);
     VALGRIND_MAKE_MEM_DEFINED(&ret, sizeof(ret));
     CHECK(ret == 1);
 
     VALGRIND_MAKE_MEM_UNDEFINED(key, 32);
     VALGRIND_MAKE_MEM_UNDEFINED(msg, 32);
-    ret = secp256k1_ec_privkey_tweak_add(ctx, key, msg);
+    ret = secp256k1_ec_seckey_tweak_add(ctx, key, msg);
     VALGRIND_MAKE_MEM_DEFINED(&ret, sizeof(ret));
     CHECK(ret == 1);
 
     VALGRIND_MAKE_MEM_UNDEFINED(key, 32);
     VALGRIND_MAKE_MEM_UNDEFINED(msg, 32);
-    ret = secp256k1_ec_privkey_tweak_mul(ctx, key, msg);
+    ret = secp256k1_ec_seckey_tweak_mul(ctx, key, msg);
     VALGRIND_MAKE_MEM_DEFINED(&ret, sizeof(ret));
     CHECK(ret == 1);