diff --git a/crypto/err/openssl.txt b/crypto/err/openssl.txt
index 6d7ac4ef8e4a01b26abec50c47c35d9d09934fab..cbbbdaee5f7077a85935365071c50219f5eb2ba7 100644
--- a/crypto/err/openssl.txt
+++ b/crypto/err/openssl.txt
@@ -703,6 +703,9 @@ EVP_F_RC5_CTRL:125:rc5_ctrl
 EVP_F_UPDATE:173:update
 KDF_F_PKEY_HKDF_CTRL_STR:103:pkey_hkdf_ctrl_str
 KDF_F_PKEY_HKDF_DERIVE:102:pkey_hkdf_derive
+KDF_F_PKEY_SCRYPT_CTRL_STR:104:pkey_scrypt_ctrl_str
+KDF_F_PKEY_SCRYPT_CTRL_UINT64:105:pkey_scrypt_ctrl_uint64
+KDF_F_PKEY_SCRYPT_DERIVE:109:pkey_scrypt_derive
 KDF_F_PKEY_TLS1_PRF_CTRL_STR:100:pkey_tls1_prf_ctrl_str
 KDF_F_PKEY_TLS1_PRF_DERIVE:101:pkey_tls1_prf_derive
 OBJ_F_OBJ_ADD_OBJECT:105:OBJ_add_object
@@ -1966,12 +1969,16 @@ EVP_R_UNSUPPORTED_SALT_TYPE:126:unsupported salt type
 EVP_R_WRAP_MODE_NOT_ALLOWED:170:wrap mode not allowed
 EVP_R_WRONG_FINAL_BLOCK_LENGTH:109:wrong final block length
 KDF_R_INVALID_DIGEST:100:invalid digest
+KDF_R_MISSING_ITERATION_COUNT:109:missing iteration count
 KDF_R_MISSING_KEY:104:missing key
 KDF_R_MISSING_MESSAGE_DIGEST:105:missing message digest
 KDF_R_MISSING_PARAMETER:101:missing parameter
+KDF_R_MISSING_PASS:110:missing pass
+KDF_R_MISSING_SALT:111:missing salt
 KDF_R_MISSING_SECRET:107:missing secret
 KDF_R_MISSING_SEED:106:missing seed
 KDF_R_UNKNOWN_PARAMETER_TYPE:103:unknown parameter type
+KDF_R_VALUE_ERROR:108:value error
 KDF_R_VALUE_MISSING:102:value missing
 OBJ_R_OID_EXISTS:102:oid exists
 OBJ_R_UNKNOWN_NID:101:unknown nid
diff --git a/crypto/evp/pmeth_lib.c b/crypto/evp/pmeth_lib.c
index b317e41399fc1dfd4a8fe289ba7b3f3a7389e323..322fdb4aa8ec11d0f6d04afed4a2b25f665813bc 100644
--- a/crypto/evp/pmeth_lib.c
+++ b/crypto/evp/pmeth_lib.c
@@ -21,6 +21,7 @@ typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
 
 static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
 
+/* This array needs to be in order of NIDs */
 static const EVP_PKEY_METHOD *standard_methods[] = {
 #ifndef OPENSSL_NO_RSA
     &rsa_pkey_meth,
@@ -43,6 +44,9 @@ static const EVP_PKEY_METHOD *standard_methods[] = {
 #endif
 #ifndef OPENSSL_NO_DH
     &dhx_pkey_meth,
+#endif
+#ifndef OPENSSL_NO_SCRYPT
+    &scrypt_pkey_meth,
 #endif
     &tls1_prf_pkey_meth,
 #ifndef OPENSSL_NO_EC
@@ -355,6 +359,12 @@ int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
 
 }
 
+int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
+                                int cmd, uint64_t value)
+{
+    return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
+}
+
 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
                           const char *name, const char *value)
 {
diff --git a/crypto/include/internal/evp_int.h b/crypto/include/internal/evp_int.h
index 635e7b5b875253219c6c3741b35b42f80dcb83b9..be1b9be926f732694f7852102a53e34080c93b4f 100644
--- a/crypto/include/internal/evp_int.h
+++ b/crypto/include/internal/evp_int.h
@@ -91,6 +91,7 @@ extern const EVP_PKEY_METHOD ed25519_pkey_meth;
 extern const EVP_PKEY_METHOD hmac_pkey_meth;
 extern const EVP_PKEY_METHOD rsa_pkey_meth;
 extern const EVP_PKEY_METHOD rsa_pss_pkey_meth;
+extern const EVP_PKEY_METHOD scrypt_pkey_meth;
 extern const EVP_PKEY_METHOD tls1_prf_pkey_meth;
 extern const EVP_PKEY_METHOD hkdf_pkey_meth;
 extern const EVP_PKEY_METHOD poly1305_pkey_meth;
diff --git a/crypto/kdf/build.info b/crypto/kdf/build.info
index cbe2080ed7caecfa99ed518110e0cac9fa6a39c6..c166399d0ce723a2fe182714bb6ae48491ddcc40 100644
--- a/crypto/kdf/build.info
+++ b/crypto/kdf/build.info
@@ -1,3 +1,3 @@
 LIBS=../../libcrypto
 SOURCE[../../libcrypto]=\
-        tls1_prf.c kdf_err.c hkdf.c
+        tls1_prf.c kdf_err.c hkdf.c scrypt.c
diff --git a/crypto/kdf/kdf_err.c b/crypto/kdf/kdf_err.c
index 8d2727217da7aa862d07c9c8783a5fe4662d0f35..c7b84b0f516dbc45cee150072d2913f330283fc2 100644
--- a/crypto/kdf/kdf_err.c
+++ b/crypto/kdf/kdf_err.c
@@ -16,6 +16,11 @@
 static const ERR_STRING_DATA KDF_str_functs[] = {
     {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_CTRL_STR, 0), "pkey_hkdf_ctrl_str"},
     {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_DERIVE, 0), "pkey_hkdf_derive"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_CTRL_STR, 0),
+     "pkey_scrypt_ctrl_str"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_CTRL_UINT64, 0),
+     "pkey_scrypt_ctrl_uint64"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_DERIVE, 0), "pkey_scrypt_derive"},
     {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_CTRL_STR, 0),
      "pkey_tls1_prf_ctrl_str"},
     {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_DERIVE, 0),
@@ -25,14 +30,19 @@ static const ERR_STRING_DATA KDF_str_functs[] = {
 
 static const ERR_STRING_DATA KDF_str_reasons[] = {
     {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_INVALID_DIGEST), "invalid digest"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_ITERATION_COUNT),
+    "missing iteration count"},
     {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_KEY), "missing key"},
     {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_MESSAGE_DIGEST),
     "missing message digest"},
     {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_PARAMETER), "missing parameter"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_PASS), "missing pass"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SALT), "missing salt"},
     {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SECRET), "missing secret"},
     {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SEED), "missing seed"},
     {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_UNKNOWN_PARAMETER_TYPE),
     "unknown parameter type"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_VALUE_ERROR), "value error"},
     {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_VALUE_MISSING), "value missing"},
     {0, NULL}
 };
diff --git a/crypto/kdf/scrypt.c b/crypto/kdf/scrypt.c
new file mode 100644
index 0000000000000000000000000000000000000000..c7aa823e491c886116f97def2989f53b594fbeee
--- /dev/null
+++ b/crypto/kdf/scrypt.c
@@ -0,0 +1,258 @@
+/*
+ * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <openssl/hmac.h>
+#include <openssl/kdf.h>
+#include <openssl/evp.h>
+#include "internal/cryptlib.h"
+#include "internal/evp_int.h"
+
+static int atou64(const char *nptr, uint64_t *result);
+
+typedef struct {
+    unsigned char *pass;
+    size_t pass_len;
+    unsigned char *salt;
+    size_t salt_len;
+    uint64_t N, r, p;
+    uint64_t maxmem_bytes;
+} SCRYPT_PKEY_CTX;
+
+/* Custom uint64_t parser since we do not have strtoull */
+static int atou64(const char *nptr, uint64_t *result)
+{
+    uint64_t value = 0;
+
+    while (*nptr) {
+        unsigned int digit;
+        uint64_t new_value;
+
+        if ((*nptr < '0') || (*nptr > '9')) {
+            return 0;
+        }
+        digit = (unsigned int)(*nptr - '0');
+        new_value = (value * 10) + digit;
+        if ((new_value < digit) || ((new_value - digit) / 10 != value)) {
+            /* Overflow */
+            return 0;
+        }
+        value = new_value;
+        nptr++;
+    }
+    *result = value;
+    return 1;
+}
+
+static int pkey_scrypt_init(EVP_PKEY_CTX *ctx)
+{
+    SCRYPT_PKEY_CTX *kctx;
+
+    kctx = OPENSSL_zalloc(sizeof(*kctx));
+    if (kctx == NULL)
+        return 0;
+
+    /* Default values are the most conservative recommendation given in the
+     * original paper of C. Percival. Derivation uses roughly 1 GiB of memory
+     * for this parameter choice (approx. 128 * r * (N + p) bytes).
+     */
+    kctx->N = 1 << 20;
+    kctx->r = 8;
+    kctx->p = 1;
+    kctx->maxmem_bytes = 1025 * 1024 * 1024;
+
+    ctx->data = kctx;
+
+    return 1;
+}
+
+static void pkey_scrypt_cleanup(EVP_PKEY_CTX *ctx)
+{
+    SCRYPT_PKEY_CTX *kctx = ctx->data;
+
+    OPENSSL_clear_free(kctx->salt, kctx->salt_len);
+    OPENSSL_clear_free(kctx->pass, kctx->pass_len);
+    OPENSSL_free(kctx);
+}
+
+static int pkey_scrypt_set_membuf(unsigned char **buffer, size_t *buflen,
+                                  const unsigned char *new_buffer,
+                                  const int new_buflen)
+{
+    if (new_buffer == NULL)
+        return 1;
+
+    if (new_buflen < 0)
+        return 0;
+
+    if (*buffer != NULL)
+        OPENSSL_clear_free(*buffer, *buflen);
+
+    if (new_buflen > 0) {
+        *buffer = OPENSSL_memdup(new_buffer, new_buflen);
+    } else {
+        *buffer = OPENSSL_malloc(1);
+    }
+    if (*buffer == NULL)
+        return 0;
+
+    *buflen = new_buflen;
+    return 1;
+}
+
+static int is_power_of_two(uint64_t value)
+{
+    return (value != 0) && ((value & (value - 1)) == 0);
+}
+
+static int pkey_scrypt_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
+{
+    SCRYPT_PKEY_CTX *kctx = ctx->data;
+    uint64_t u64_value;
+
+    switch (type) {
+    case EVP_PKEY_CTRL_PASS:
+        return pkey_scrypt_set_membuf(&kctx->pass, &kctx->pass_len, p2, p1);
+
+    case EVP_PKEY_CTRL_SCRYPT_SALT:
+        return pkey_scrypt_set_membuf(&kctx->salt, &kctx->salt_len, p2, p1);
+
+    case EVP_PKEY_CTRL_SCRYPT_N:
+        u64_value = *((uint64_t *)p2);
+        if ((u64_value <= 1) || !is_power_of_two(u64_value))
+            return 0;
+        kctx->N = u64_value;
+        return 1;
+
+    case EVP_PKEY_CTRL_SCRYPT_R:
+        u64_value = *((uint64_t *)p2);
+        if (u64_value < 1)
+            return 0;
+        kctx->r = u64_value;
+        return 1;
+
+    case EVP_PKEY_CTRL_SCRYPT_P:
+        u64_value = *((uint64_t *)p2);
+        if (u64_value < 1)
+            return 0;
+        kctx->p = u64_value;
+        return 1;
+
+    case EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES:
+        u64_value = *((uint64_t *)p2);
+        if (u64_value < 1)
+            return 0;
+        kctx->maxmem_bytes = u64_value;
+        return 1;
+
+    default:
+        return -2;
+
+    }
+}
+
+static int pkey_scrypt_ctrl_uint64(EVP_PKEY_CTX *ctx, int type,
+                                   const char *value)
+{
+    uint64_t int_value;
+
+    if (!atou64(value, &int_value)) {
+        KDFerr(KDF_F_PKEY_SCRYPT_CTRL_UINT64, KDF_R_VALUE_ERROR);
+        return 0;
+    }
+    return pkey_scrypt_ctrl(ctx, type, 0, &int_value);
+}
+
+static int pkey_scrypt_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
+                                const char *value)
+{
+    if (value == NULL) {
+        KDFerr(KDF_F_PKEY_SCRYPT_CTRL_STR, KDF_R_VALUE_MISSING);
+        return 0;
+    }
+
+    if (strcmp(type, "pass") == 0)
+        return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_PASS, value);
+
+    if (strcmp(type, "hexpass") == 0)
+        return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_PASS, value);
+
+    if (strcmp(type, "salt") == 0)
+        return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_SCRYPT_SALT, value);
+
+    if (strcmp(type, "hexsalt") == 0)
+        return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_SCRYPT_SALT, value);
+
+    if (strcmp(type, "N") == 0)
+        return pkey_scrypt_ctrl_uint64(ctx, EVP_PKEY_CTRL_SCRYPT_N, value);
+
+    if (strcmp(type, "r") == 0)
+        return pkey_scrypt_ctrl_uint64(ctx, EVP_PKEY_CTRL_SCRYPT_R, value);
+
+    if (strcmp(type, "p") == 0)
+        return pkey_scrypt_ctrl_uint64(ctx, EVP_PKEY_CTRL_SCRYPT_P, value);
+
+    if (strcmp(type, "maxmem_bytes") == 0)
+        return pkey_scrypt_ctrl_uint64(ctx, EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES,
+                                       value);
+
+    KDFerr(KDF_F_PKEY_SCRYPT_CTRL_STR, KDF_R_UNKNOWN_PARAMETER_TYPE);
+    return -2;
+}
+
+static int pkey_scrypt_derive(EVP_PKEY_CTX *ctx, unsigned char *key,
+                              size_t *keylen)
+{
+    SCRYPT_PKEY_CTX *kctx = ctx->data;
+
+    if (kctx->pass == NULL) {
+        KDFerr(KDF_F_PKEY_SCRYPT_DERIVE, KDF_R_MISSING_PASS);
+        return 0;
+    }
+
+    if (kctx->salt == NULL) {
+        KDFerr(KDF_F_PKEY_SCRYPT_DERIVE, KDF_R_MISSING_SALT);
+        return 0;
+    }
+
+    return EVP_PBE_scrypt((char *)kctx->pass, kctx->pass_len, kctx->salt,
+                          kctx->salt_len, kctx->N, kctx->r, kctx->p,
+                          kctx->maxmem_bytes, key, *keylen);
+}
+
+const EVP_PKEY_METHOD scrypt_pkey_meth = {
+    EVP_PKEY_SCRYPT,
+    0,
+    pkey_scrypt_init,
+    0,
+    pkey_scrypt_cleanup,
+
+    0, 0,
+    0, 0,
+
+    0,
+    0,
+
+    0,
+    0,
+
+    0, 0,
+
+    0, 0, 0, 0,
+
+    0, 0,
+
+    0, 0,
+
+    0,
+    pkey_scrypt_derive,
+    pkey_scrypt_ctrl,
+    pkey_scrypt_ctrl_str
+};
diff --git a/crypto/objects/obj_dat.h b/crypto/objects/obj_dat.h
index 3de3110b53bdf5d170277e0a7631ae02c193a36f..9647e3167715361b842d4c201f707815f94d86d9 100644
--- a/crypto/objects/obj_dat.h
+++ b/crypto/objects/obj_dat.h
@@ -1987,7 +1987,7 @@ static const ASN1_OBJECT nid_objs[NUM_NID] = {
     {"CAMELLIA-256-CCM", "camellia-256-ccm", NID_camellia_256_ccm, 8, &so[6330]},
     {"CAMELLIA-256-CTR", "camellia-256-ctr", NID_camellia_256_ctr, 8, &so[6338]},
     {"CAMELLIA-256-CMAC", "camellia-256-cmac", NID_camellia_256_cmac, 8, &so[6346]},
-    {"id-scrypt", "id-scrypt", NID_id_scrypt, 9, &so[6354]},
+    {"id-scrypt", "scrypt", NID_id_scrypt, 9, &so[6354]},
     {"id-tc26", "id-tc26", NID_id_tc26, 5, &so[6363]},
     {"gost89-cnt-12", "gost89-cnt-12", NID_gost89_cnt_12},
     {"gost-mac-12", "gost-mac-12", NID_gost_mac_12},
@@ -3883,7 +3883,6 @@ static const unsigned int ln_objs[NUM_LN] = {
      314,    /* "id-regInfo" */
      322,    /* "id-regInfo-certReq" */
      321,    /* "id-regInfo-utf8Pairs" */
-     973,    /* "id-scrypt" */
      191,    /* "id-smime-aa" */
      215,    /* "id-smime-aa-contentHint" */
      218,    /* "id-smime-aa-contentIdentifier" */
@@ -4135,6 +4134,7 @@ static const unsigned int ln_objs[NUM_LN] = {
      291,    /* "sbgp-autonomousSysNum" */
      290,    /* "sbgp-ipAddrBlock" */
      292,    /* "sbgp-routerIdentifier" */
+     973,    /* "scrypt" */
      159,    /* "sdsiCertificate" */
      859,    /* "searchGuide" */
      704,    /* "secp112r1" */
diff --git a/crypto/objects/objects.txt b/crypto/objects/objects.txt
index 8f17cc4a448a01a49b4a27948c8a5e0074e00e8f..7464d670e97dc70f43167803118051ef7992340a 100644
--- a/crypto/objects/objects.txt
+++ b/crypto/objects/objects.txt
@@ -1524,7 +1524,8 @@ secg-scheme 14 3 : dhSinglePass-cofactorDH-sha512kdf-scheme
 1 3 6 1 4 1 311 60 2 1 3	: jurisdictionC		: jurisdictionCountryName
 
 # SCRYPT algorithm
-1 3 6 1 4 1 11591 4 11		: id-scrypt
+!Cname id-scrypt
+1 3 6 1 4 1 11591 4 11		: id-scrypt         : scrypt
 
 # NID for TLS1 PRF
                             : TLS1-PRF          : tls1-prf
diff --git a/include/openssl/evp.h b/include/openssl/evp.h
index af7043b2eafb1daaae45eae4f7dd59990d72a9d8..dd02077e05af861073a2d63e7e158879102c61d5 100644
--- a/include/openssl/evp.h
+++ b/include/openssl/evp.h
@@ -52,6 +52,7 @@
 # define EVP_PKEY_EC     NID_X9_62_id_ecPublicKey
 # define EVP_PKEY_HMAC   NID_hmac
 # define EVP_PKEY_CMAC   NID_cmac
+# define EVP_PKEY_SCRYPT NID_id_scrypt
 # define EVP_PKEY_TLS1_PRF NID_tls1_prf
 # define EVP_PKEY_HKDF   NID_hkdf
 # define EVP_PKEY_POLY1305 NID_poly1305
@@ -1275,6 +1276,8 @@ int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
                       int cmd, int p1, void *p2);
 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
                           const char *value);
+int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
+                                int cmd, uint64_t value);
 
 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str);
 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex);
diff --git a/include/openssl/kdf.h b/include/openssl/kdf.h
index bd7451566f234237d28cf700aaf9c80bae0d2847..26380ca479f3907960a22b6e6c62649f2f8686b2 100644
--- a/include/openssl/kdf.h
+++ b/include/openssl/kdf.h
@@ -23,6 +23,12 @@ extern "C" {
 # define EVP_PKEY_CTRL_HKDF_KEY                 (EVP_PKEY_ALG_CTRL + 5)
 # define EVP_PKEY_CTRL_HKDF_INFO                (EVP_PKEY_ALG_CTRL + 6)
 # define EVP_PKEY_CTRL_HKDF_MODE                (EVP_PKEY_ALG_CTRL + 7)
+# define EVP_PKEY_CTRL_PASS                     (EVP_PKEY_ALG_CTRL + 8)
+# define EVP_PKEY_CTRL_SCRYPT_SALT              (EVP_PKEY_ALG_CTRL + 9)
+# define EVP_PKEY_CTRL_SCRYPT_N                 (EVP_PKEY_ALG_CTRL + 10)
+# define EVP_PKEY_CTRL_SCRYPT_R                 (EVP_PKEY_ALG_CTRL + 11)
+# define EVP_PKEY_CTRL_SCRYPT_P                 (EVP_PKEY_ALG_CTRL + 12)
+# define EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES      (EVP_PKEY_ALG_CTRL + 13)
 
 # define EVP_PKEY_HKDEF_MODE_EXTRACT_AND_EXPAND 0
 # define EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY       1
@@ -59,6 +65,31 @@ extern "C" {
 # define EVP_PKEY_CTX_hkdf_mode(pctx, mode) \
             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
                               EVP_PKEY_CTRL_HKDF_MODE, mode, NULL)
+
+# define EVP_PKEY_CTX_set1_pbe_pass(pctx, pass, passlen) \
+            EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
+                            EVP_PKEY_CTRL_PASS, passlen, (void *)(pass))
+
+# define EVP_PKEY_CTX_set1_scrypt_salt(pctx, salt, saltlen) \
+            EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
+                            EVP_PKEY_CTRL_SCRYPT_SALT, saltlen, (void *)(salt))
+
+# define EVP_PKEY_CTX_set_scrypt_N(pctx, n) \
+            EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
+                            EVP_PKEY_CTRL_SCRYPT_N, n)
+
+# define EVP_PKEY_CTX_set_scrypt_r(pctx, r) \
+            EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
+                            EVP_PKEY_CTRL_SCRYPT_R, r)
+
+# define EVP_PKEY_CTX_set_scrypt_p(pctx, p) \
+            EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
+                            EVP_PKEY_CTRL_SCRYPT_P, p)
+
+# define EVP_PKEY_CTX_set_scrypt_maxmem_bytes(pctx, maxmem_bytes) \
+            EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
+                            EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES, maxmem_bytes)
+
 int ERR_load_KDF_strings(void);
 
 # ifdef  __cplusplus
diff --git a/include/openssl/kdferr.h b/include/openssl/kdferr.h
index c01b735c24bc1f054867818660ff0447d5cc3da5..8f045f06ce9ba69b3fedc1b86403e59833a4b1df 100644
--- a/include/openssl/kdferr.h
+++ b/include/openssl/kdferr.h
@@ -24,6 +24,9 @@ int ERR_load_KDF_strings(void);
  */
 # define KDF_F_PKEY_HKDF_CTRL_STR                         103
 # define KDF_F_PKEY_HKDF_DERIVE                           102
+# define KDF_F_PKEY_SCRYPT_CTRL_STR                       104
+# define KDF_F_PKEY_SCRYPT_CTRL_UINT64                    105
+# define KDF_F_PKEY_SCRYPT_DERIVE                         109
 # define KDF_F_PKEY_TLS1_PRF_CTRL_STR                     100
 # define KDF_F_PKEY_TLS1_PRF_DERIVE                       101
 
@@ -31,12 +34,16 @@ int ERR_load_KDF_strings(void);
  * KDF reason codes.
  */
 # define KDF_R_INVALID_DIGEST                             100
+# define KDF_R_MISSING_ITERATION_COUNT                    109
 # define KDF_R_MISSING_KEY                                104
 # define KDF_R_MISSING_MESSAGE_DIGEST                     105
 # define KDF_R_MISSING_PARAMETER                          101
+# define KDF_R_MISSING_PASS                               110
+# define KDF_R_MISSING_SALT                               111
 # define KDF_R_MISSING_SECRET                             107
 # define KDF_R_MISSING_SEED                               106
 # define KDF_R_UNKNOWN_PARAMETER_TYPE                     103
+# define KDF_R_VALUE_ERROR                                108
 # define KDF_R_VALUE_MISSING                              102
 
 #endif
diff --git a/include/openssl/obj_mac.h b/include/openssl/obj_mac.h
index cd2c60b81056d961b05bd9377d5b320dc47604af..97511171ae19acdf9ef2c970413ab3543b54fa2f 100644
--- a/include/openssl/obj_mac.h
+++ b/include/openssl/obj_mac.h
@@ -4735,6 +4735,7 @@
 #define OBJ_jurisdictionCountryName             1L,3L,6L,1L,4L,1L,311L,60L,2L,1L,3L
 
 #define SN_id_scrypt            "id-scrypt"
+#define LN_id_scrypt            "scrypt"
 #define NID_id_scrypt           973
 #define OBJ_id_scrypt           1L,3L,6L,1L,4L,1L,11591L,4L,11L
 
diff --git a/test/recipes/30-test_evp_data/evpkdf.txt b/test/recipes/30-test_evp_data/evpkdf.txt
index 4df8f8fe0a616ce333a28f487a0899d1be1110b5..9a6cc28385367879504d8059aee4d7542c7550f1 100644
--- a/test/recipes/30-test_evp_data/evpkdf.txt
+++ b/test/recipes/30-test_evp_data/evpkdf.txt
@@ -252,4 +252,54 @@ Ctrl.IKM = hexkey:0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c
 Ctrl.salt = salt:
 Output = 2c91117204d745f3500d636a62f64f0ab3bae548aa53d423b0d1f27ebba6f5e5673a081d70cce7acfc48
 
+Title = id-scrypt tests (from draft-josefsson-id-scrypt-kdf-03 and others)
+
+KDF = scrypt
+Ctrl.pass = pass:
+Ctrl.salt = salt:
+Ctrl.N = N:16
+Ctrl.r = r:1
+Ctrl.p = p:1
+Output = 77d6576238657b203b19ca42c18a0497f16b4844e3074ae8dfdffa3fede21442fcd0069ded0948f8326a753a0fc81f17e8d3e0fb2e0d3628cf35e20c38d18906
+
+KDF = scrypt
+Ctrl.pass = pass:password
+Ctrl.salt = salt:NaCl
+Ctrl.N = N:1024
+Ctrl.r = r:8
+Ctrl.p = p:16
+Output = fdbabe1c9d3472007856e7190d01e9fe7c6ad7cbc8237830e77376634b3731622eaf30d92e22a3886ff109279d9830dac727afb94a83ee6d8360cbdfa2cc0640
+
+KDF = scrypt
+Ctrl.hexpass = hexpass:70617373776f7264
+Ctrl.salt = salt:NaCl
+Ctrl.N = N:1024
+Ctrl.r = r:8
+Ctrl.p = p:16
+Output = fdbabe1c9d3472007856e7190d01e9fe7c6ad7cbc8237830e77376634b3731622eaf30d92e22a3886ff109279d9830dac727afb94a83ee6d8360cbdfa2cc0640
+
+KDF = scrypt
+Ctrl.pass = pass:password
+Ctrl.hexsalt = hexsalt:4e61436c
+Ctrl.N = N:1024
+Ctrl.r = r:8
+Ctrl.p = p:16
+Output = fdbabe1c9d3472007856e7190d01e9fe7c6ad7cbc8237830e77376634b3731622eaf30d92e22a3886ff109279d9830dac727afb94a83ee6d8360cbdfa2cc0640
+
+KDF = scrypt
+Ctrl.pass = pass:pleaseletmein
+Ctrl.salt = salt:SodiumChloride
+Ctrl.N = N:16384
+Ctrl.r = r:8
+Ctrl.p = p:1
+Output = 7023bdcb3afd7348461c06cd81fd38ebfda8fbba904f8e3ea9b543f6545da1f2d5432955613f0fcf62d49705242a9af9e61e85dc0d651e40dfcf017b45575887
+
+# Out of memory
+KDF = scrypt
+Ctrl.pass = pass:pleaseletmein
+Ctrl.salt = salt:SodiumChloride
+Ctrl.N = N:1048576
+Ctrl.r = r:8
+Ctrl.p = p:1
+Result = INTERNAL_ERROR
 
diff --git a/util/libcrypto.num b/util/libcrypto.num
index fbfcb5c083eb083d5984232ef3211e67ed43d4e0..42284ec9ca9c8a684022a5757831589320407360 100644
--- a/util/libcrypto.num
+++ b/util/libcrypto.num
@@ -4379,3 +4379,4 @@ BN_priv_rand_range                      4322	1_1_1	EXIST::FUNCTION:
 ASN1_TIME_normalize                     4323	1_1_1	EXIST::FUNCTION:
 ASN1_TIME_cmp_time_t                    4324	1_1_1	EXIST::FUNCTION:
 ASN1_TIME_compare                       4325	1_1_1	EXIST::FUNCTION:
+EVP_PKEY_CTX_ctrl_uint64                4326	1_1_1	EXIST::FUNCTION: