params: provide a faster TRIE based param lookup.

The separate file is a Perl script that generates the appropriate define
directives for inclusion in core_names.h.  By having this separation it
will be possible to prebuild data structures to give faster access when
looking up parameters by name.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20935)

1 files changed, 673 insertions, 0 deletions

diff --git a/util/perl/OpenSSL/paramnames.pm b/util/perl/OpenSSL/paramnames.pm
new file mode 100644
index 0000000000..66c6fdda22
--- /dev/null
+++ b/util/perl/OpenSSL/paramnames.pm
@@ -0,0 +1,673 @@
+#! /usr/bin/env perl
+# Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the Apache License 2.0 (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
+
+package OpenSSL::paramnames;
+
+use strict;
+use warnings;
+
+require Exporter;
+our @ISA = qw(Exporter);
+our @EXPORT_OK = qw(generate_public_macros
+                    generate_internal_macros
+                    produce_decoder);
+
+my $case_sensitive = 1;
+
+my %params = (
+# Well known parameter names that core passes to providers
+    'PROV_PARAM_CORE_VERSION' =>         "openssl-version",# utf8_ptr
+    'PROV_PARAM_CORE_PROV_NAME' =>       "provider-name",  # utf8_ptr
+    'PROV_PARAM_CORE_MODULE_FILENAME' => "module-filename",# utf8_ptr
+
+# Well known parameter names that Providers can define
+    'PROV_PARAM_NAME' =>               "name",               # utf8_ptr
+    'PROV_PARAM_VERSION' =>            "version",            # utf8_ptr
+    'PROV_PARAM_BUILDINFO' =>          "buildinfo",          # utf8_ptr
+    'PROV_PARAM_STATUS' =>             "status",             # uint
+    'PROV_PARAM_SECURITY_CHECKS' =>    "security-checks",    # uint
+    'PROV_PARAM_TLS1_PRF_EMS_CHECK' => "tls1-prf-ems-check", # uint
+    'PROV_PARAM_DRBG_TRUNC_DIGEST' =>  "drbg-no-trunc-md",   # uint
+
+# Self test callback parameters
+    'PROV_PARAM_SELF_TEST_PHASE' =>  "st-phase",# utf8_string
+    'PROV_PARAM_SELF_TEST_TYPE' =>   "st-type", # utf8_string
+    'PROV_PARAM_SELF_TEST_DESC' =>   "st-desc", # utf8_string
+
+# Provider-native object abstractions
+#
+# These are used when a provider wants to pass object data or an object
+# reference back to libcrypto.  This is only useful for provider functions
+# that take a callback to which an PARAM array with these parameters
+# can be passed.
+#
+# This set of parameter names is explained in detail in provider-object(7)
+# (doc/man7/provider-object.pod)
+
+    'OBJECT_PARAM_TYPE' =>              "type",     # INTEGER
+    'OBJECT_PARAM_DATA_TYPE' =>         "data-type",# UTF8_STRING
+    'OBJECT_PARAM_DATA_STRUCTURE' =>    "data-structure",# UTF8_STRING
+    'OBJECT_PARAM_REFERENCE' =>         "reference",# OCTET_STRING
+    'OBJECT_PARAM_DATA' =>              "data",# OCTET_STRING or UTF8_STRING
+    'OBJECT_PARAM_DESC' =>              "desc",     # UTF8_STRING
+
+# Algorithm parameters
+# If "engine",or "properties",are specified, they should always be paired
+# with the algorithm type.
+# Note these are common names that are shared by many types (such as kdf, mac,
+# and pkey) e.g: see MAC_PARAM_DIGEST below.
+
+    'ALG_PARAM_DIGEST' =>       "digest",       # utf8_string
+    'ALG_PARAM_CIPHER' =>       "cipher",       # utf8_string
+    'ALG_PARAM_ENGINE' =>       "engine",       # utf8_string
+    'ALG_PARAM_MAC' =>          "mac",          # utf8_string
+    'ALG_PARAM_PROPERTIES' =>   "properties",   # utf8_string
+
+# cipher parameters
+    'CIPHER_PARAM_PADDING' =>              "padding",     # uint
+    'CIPHER_PARAM_USE_BITS' =>             "use-bits",    # uint
+    'CIPHER_PARAM_TLS_VERSION' =>          "tls-version", # uint
+    'CIPHER_PARAM_TLS_MAC' =>              "tls-mac",     # octet_ptr
+    'CIPHER_PARAM_TLS_MAC_SIZE' =>         "tls-mac-size",# size_t
+    'CIPHER_PARAM_MODE' =>                 "mode",        # uint
+    'CIPHER_PARAM_BLOCK_SIZE' =>           "blocksize",   # size_t
+    'CIPHER_PARAM_AEAD' =>                 "aead",        # int, 0 or 1
+    'CIPHER_PARAM_CUSTOM_IV' =>            "custom-iv",   # int, 0 or 1
+    'CIPHER_PARAM_CTS' =>                  "cts",         # int, 0 or 1
+    'CIPHER_PARAM_TLS1_MULTIBLOCK' =>      "tls-multi",   # int, 0 or 1
+    'CIPHER_PARAM_HAS_RAND_KEY' =>         "has-randkey", # int, 0 or 1
+    'CIPHER_PARAM_KEYLEN' =>               "keylen",      # size_t
+    'CIPHER_PARAM_IVLEN' =>                "ivlen",       # size_t
+    'CIPHER_PARAM_IV' =>                   "iv",          # octet_string OR octet_ptr
+    'CIPHER_PARAM_UPDATED_IV' =>           "updated-iv",  # octet_string OR octet_ptr
+    'CIPHER_PARAM_NUM' =>                  "num",         # uint
+    'CIPHER_PARAM_ROUNDS' =>               "rounds",      # uint
+    'CIPHER_PARAM_AEAD_TAG' =>             "tag",         # octet_string
+    'CIPHER_PARAM_AEAD_TLS1_AAD' =>        "tlsaad",      # octet_string
+    'CIPHER_PARAM_AEAD_TLS1_AAD_PAD' =>    "tlsaadpad",   # size_t
+    'CIPHER_PARAM_AEAD_TLS1_IV_FIXED' =>   "tlsivfixed",  # octet_string
+    'CIPHER_PARAM_AEAD_TLS1_GET_IV_GEN' => "tlsivgen",    # octet_string
+    'CIPHER_PARAM_AEAD_TLS1_SET_IV_INV' => "tlsivinv",    # octet_string
+    'CIPHER_PARAM_AEAD_IVLEN' =>           '*CIPHER_PARAM_IVLEN',
+    'CIPHER_PARAM_AEAD_TAGLEN' =>          "taglen",      # size_t
+    'CIPHER_PARAM_AEAD_MAC_KEY' =>         "mackey",      # octet_string
+    'CIPHER_PARAM_RANDOM_KEY' =>           "randkey",     # octet_string
+    'CIPHER_PARAM_RC2_KEYBITS' =>          "keybits",     # size_t
+    'CIPHER_PARAM_SPEED' =>                "speed",       # uint
+    'CIPHER_PARAM_CTS_MODE' =>             "cts_mode",    # utf8_string
+# For passing the AlgorithmIdentifier parameter in DER form
+    'CIPHER_PARAM_ALGORITHM_ID_PARAMS' =>  "alg_id_param",# octet_string
+    'CIPHER_PARAM_XTS_STANDARD' =>         "xts_standard",# utf8_string
+
+    'CIPHER_PARAM_TLS1_MULTIBLOCK_MAX_SEND_FRAGMENT' =>  "tls1multi_maxsndfrag",# uint
+    'CIPHER_PARAM_TLS1_MULTIBLOCK_MAX_BUFSIZE' =>        "tls1multi_maxbufsz",  # size_t
+    'CIPHER_PARAM_TLS1_MULTIBLOCK_INTERLEAVE' =>         "tls1multi_interleave",# uint
+    'CIPHER_PARAM_TLS1_MULTIBLOCK_AAD' =>                "tls1multi_aad",       # octet_string
+    'CIPHER_PARAM_TLS1_MULTIBLOCK_AAD_PACKLEN' =>        "tls1multi_aadpacklen",# uint
+    'CIPHER_PARAM_TLS1_MULTIBLOCK_ENC' =>                "tls1multi_enc",       # octet_string
+    'CIPHER_PARAM_TLS1_MULTIBLOCK_ENC_IN' =>             "tls1multi_encin",     # octet_string
+    'CIPHER_PARAM_TLS1_MULTIBLOCK_ENC_LEN' =>            "tls1multi_enclen",    # size_t
+
+# digest parameters
+    'DIGEST_PARAM_XOFLEN' =>       "xoflen",       # size_t
+    'DIGEST_PARAM_SSL3_MS' =>      "ssl3-ms",      # octet string
+    'DIGEST_PARAM_PAD_TYPE' =>     "pad-type",     # uint
+    'DIGEST_PARAM_MICALG' =>       "micalg",       # utf8 string
+    'DIGEST_PARAM_BLOCK_SIZE' =>   "blocksize",    # size_t
+    'DIGEST_PARAM_SIZE' =>         "size",         # size_t
+    'DIGEST_PARAM_XOF' =>          "xof",          # int, 0 or 1
+    'DIGEST_PARAM_ALGID_ABSENT' => "algid-absent", # int, 0 or 1
+
+# MAC parameters
+    'MAC_PARAM_KEY' =>            "key",           # octet string
+    'MAC_PARAM_IV' =>             "iv",            # octet string
+    'MAC_PARAM_CUSTOM' =>         "custom",        # utf8 string
+    'MAC_PARAM_SALT' =>           "salt",          # octet string
+    'MAC_PARAM_XOF' =>            "xof",           # int, 0 or 1
+    'MAC_PARAM_DIGEST_NOINIT' =>  "digest-noinit", # int, 0 or 1
+    'MAC_PARAM_DIGEST_ONESHOT' => "digest-oneshot",# int, 0 or 1
+    'MAC_PARAM_C_ROUNDS' =>       "c-rounds",      # unsigned int
+    'MAC_PARAM_D_ROUNDS' =>       "d-rounds",      # unsigned int
+
+# If "engine",or "properties",are specified, they should always be paired
+# with "cipher",or "digest".
+
+    'MAC_PARAM_CIPHER' =>           '*ALG_PARAM_CIPHER',        # utf8 string
+    'MAC_PARAM_DIGEST' =>           '*ALG_PARAM_DIGEST',        # utf8 string
+    'MAC_PARAM_PROPERTIES' =>       '*ALG_PARAM_PROPERTIES',    # utf8 string
+    'MAC_PARAM_SIZE' =>             "size",                     # size_t
+    'MAC_PARAM_BLOCK_SIZE' =>       "block-size",               # size_t
+    'MAC_PARAM_TLS_DATA_SIZE' =>    "tls-data-size",            # size_t
+
+# KDF / PRF parameters
+    'KDF_PARAM_SECRET' =>       "secret",                   # octet string
+    'KDF_PARAM_KEY' =>          "key",                      # octet string
+    'KDF_PARAM_SALT' =>         "salt",                     # octet string
+    'KDF_PARAM_PASSWORD' =>     "pass",                     # octet string
+    'KDF_PARAM_PREFIX' =>       "prefix",                   # octet string
+    'KDF_PARAM_LABEL' =>        "label",                    # octet string
+    'KDF_PARAM_DATA' =>         "data",                     # octet string
+    'KDF_PARAM_DIGEST' =>       '*ALG_PARAM_DIGEST',        # utf8 string
+    'KDF_PARAM_CIPHER' =>       '*ALG_PARAM_CIPHER',        # utf8 string
+    'KDF_PARAM_MAC' =>          '*ALG_PARAM_MAC',           # utf8 string
+    'KDF_PARAM_MAC_SIZE' =>     "maclen",                   # size_t
+    'KDF_PARAM_PROPERTIES' =>   '*ALG_PARAM_PROPERTIES',    # utf8 string
+    'KDF_PARAM_ITER' =>         "iter",                     # unsigned int
+    'KDF_PARAM_MODE' =>         "mode",                     # utf8 string or int
+    'KDF_PARAM_PKCS5' =>        "pkcs5",                    # int
+    'KDF_PARAM_UKM' =>          "ukm",                      # octet string
+    'KDF_PARAM_CEK_ALG' =>      "cekalg",                   # utf8 string
+    'KDF_PARAM_SCRYPT_N' =>     "n",                        # uint64_t
+    'KDF_PARAM_SCRYPT_R' =>     "r",                        # uint32_t
+    'KDF_PARAM_SCRYPT_P' =>     "p",                        # uint32_t
+    'KDF_PARAM_SCRYPT_MAXMEM' => "maxmem_bytes",            # uint64_t
+    'KDF_PARAM_INFO' =>         "info",                     # octet string
+    'KDF_PARAM_SEED' =>         "seed",                     # octet string
+    'KDF_PARAM_SSHKDF_XCGHASH' => "xcghash",                # octet string
+    'KDF_PARAM_SSHKDF_SESSION_ID' => "session_id",          # octet string
+    'KDF_PARAM_SSHKDF_TYPE' =>  "type",                     # int
+    'KDF_PARAM_SIZE' =>         "size",                     # size_t
+    'KDF_PARAM_CONSTANT' =>     "constant",                 # octet string
+    'KDF_PARAM_PKCS12_ID' =>    "id",                       # int
+    'KDF_PARAM_KBKDF_USE_L' =>          "use-l",            # int
+    'KDF_PARAM_KBKDF_USE_SEPARATOR' =>  "use-separator",    # int
+    'KDF_PARAM_KBKDF_R' =>      "r",                        # int
+    'KDF_PARAM_X942_ACVPINFO' =>        "acvp-info",
+    'KDF_PARAM_X942_PARTYUINFO' =>      "partyu-info",
+    'KDF_PARAM_X942_PARTYVINFO' =>      "partyv-info",
+    'KDF_PARAM_X942_SUPP_PUBINFO' =>    "supp-pubinfo",
+    'KDF_PARAM_X942_SUPP_PRIVINFO' =>   "supp-privinfo",
+    'KDF_PARAM_X942_USE_KEYBITS' =>     "use-keybits",
+    'KDF_PARAM_HMACDRBG_ENTROPY' =>     "entropy",
+    'KDF_PARAM_HMACDRBG_NONCE' =>       "nonce",
+    'KDF_PARAM_THREADS' =>        "threads",                # uint32_t
+    'KDF_PARAM_EARLY_CLEAN' =>    "early_clean",            # uint32_t
+    'KDF_PARAM_ARGON2_AD' =>      "ad",                     # octet string
+    'KDF_PARAM_ARGON2_LANES' =>   "lanes",                  # uint32_t
+    'KDF_PARAM_ARGON2_MEMCOST' => "memcost",                # uint32_t
+    'KDF_PARAM_ARGON2_VERSION' => "version",                # uint32_t
+
+# Known RAND names
+    'RAND_PARAM_STATE' =>                   "state",
+    'RAND_PARAM_STRENGTH' =>                "strength",
+    'RAND_PARAM_MAX_REQUEST' =>             "max_request",
+    'RAND_PARAM_TEST_ENTROPY' =>            "test_entropy",
+    'RAND_PARAM_TEST_NONCE' =>              "test_nonce",
+
+# RAND/DRBG names
+    'DRBG_PARAM_RESEED_REQUESTS' =>         "reseed_requests",
+    'DRBG_PARAM_RESEED_TIME_INTERVAL' =>    "reseed_time_interval",
+    'DRBG_PARAM_MIN_ENTROPYLEN' =>          "min_entropylen",
+    'DRBG_PARAM_MAX_ENTROPYLEN' =>          "max_entropylen",
+    'DRBG_PARAM_MIN_NONCELEN' =>            "min_noncelen",
+    'DRBG_PARAM_MAX_NONCELEN' =>            "max_noncelen",
+    'DRBG_PARAM_MAX_PERSLEN' =>             "max_perslen",
+    'DRBG_PARAM_MAX_ADINLEN' =>             "max_adinlen",
+    'DRBG_PARAM_RESEED_COUNTER' =>          "reseed_counter",
+    'DRBG_PARAM_RESEED_TIME' =>             "reseed_time",
+    'DRBG_PARAM_PROPERTIES' =>              '*ALG_PARAM_PROPERTIES',
+    'DRBG_PARAM_DIGEST' =>                  '*ALG_PARAM_DIGEST',
+    'DRBG_PARAM_CIPHER' =>                  '*ALG_PARAM_CIPHER',
+    'DRBG_PARAM_MAC' =>                     '*ALG_PARAM_MAC',
+    'DRBG_PARAM_USE_DF' =>                  "use_derivation_function",
+
+# DRBG call back parameters
+    'DRBG_PARAM_ENTROPY_REQUIRED' =>        "entropy_required",
+    'DRBG_PARAM_PREDICTION_RESISTANCE' =>   "prediction_resistance",
+    'DRBG_PARAM_MIN_LENGTH' =>              "minium_length",
+    'DRBG_PARAM_MAX_LENGTH' =>              "maxium_length",
+    'DRBG_PARAM_RANDOM_DATA' =>             "random_data",
+    'DRBG_PARAM_SIZE' =>                    "size",
+
+# PKEY parameters
+# Common PKEY parameters
+    'PKEY_PARAM_BITS' =>                "bits",# integer
+    'PKEY_PARAM_MAX_SIZE' =>            "max-size",# integer
+    'PKEY_PARAM_SECURITY_BITS' =>       "security-bits",# integer
+    'PKEY_PARAM_DIGEST' =>              '*ALG_PARAM_DIGEST',
+    'PKEY_PARAM_CIPHER' =>              '*ALG_PARAM_CIPHER', # utf8 string
+    'PKEY_PARAM_ENGINE' =>              '*ALG_PARAM_ENGINE', # utf8 string
+    'PKEY_PARAM_PROPERTIES' =>          '*ALG_PARAM_PROPERTIES',
+    'PKEY_PARAM_DEFAULT_DIGEST' =>      "default-digest",# utf8 string
+    'PKEY_PARAM_MANDATORY_DIGEST' =>    "mandatory-digest",# utf8 string
+    'PKEY_PARAM_PAD_MODE' =>            "pad-mode",
+    'PKEY_PARAM_DIGEST_SIZE' =>         "digest-size",
+    'PKEY_PARAM_MASKGENFUNC' =>         "mgf",
+    'PKEY_PARAM_MGF1_DIGEST' =>         "mgf1-digest",
+    'PKEY_PARAM_MGF1_PROPERTIES' =>     "mgf1-properties",
+    'PKEY_PARAM_ENCODED_PUBLIC_KEY' =>  "encoded-pub-key",
+    'PKEY_PARAM_GROUP_NAME' =>          "group",
+    'PKEY_PARAM_DIST_ID' =>             "distid",
+    'PKEY_PARAM_PUB_KEY' =>             "pub",
+    'PKEY_PARAM_PRIV_KEY' =>            "priv",
+    'PKEY_PARAM_IMPLICIT_REJECTION' =>  "implicit-rejection",
+
+# Diffie-Hellman/DSA Parameters
+    'PKEY_PARAM_FFC_P' =>               "p",
+    'PKEY_PARAM_FFC_G' =>               "g",
+    'PKEY_PARAM_FFC_Q' =>               "q",
+    'PKEY_PARAM_FFC_GINDEX' =>          "gindex",
+    'PKEY_PARAM_FFC_PCOUNTER' =>        "pcounter",
+    'PKEY_PARAM_FFC_SEED' =>            "seed",
+    'PKEY_PARAM_FFC_COFACTOR' =>        "j",
+    'PKEY_PARAM_FFC_H' =>               "hindex",
+    'PKEY_PARAM_FFC_VALIDATE_PQ' =>     "validate-pq",
+    'PKEY_PARAM_FFC_VALIDATE_G' =>      "validate-g",
+    'PKEY_PARAM_FFC_VALIDATE_LEGACY' => "validate-legacy",
+
+# Diffie-Hellman params
+    'PKEY_PARAM_DH_GENERATOR' =>        "safeprime-generator",
+    'PKEY_PARAM_DH_PRIV_LEN' =>         "priv_len",
+
+# Elliptic Curve Domain Parameters
+    'PKEY_PARAM_EC_PUB_X' =>     "qx",
+    'PKEY_PARAM_EC_PUB_Y' =>     "qy",
+
+# Elliptic Curve Explicit Domain Parameters
+    'PKEY_PARAM_EC_FIELD_TYPE' =>                   "field-type",
+    'PKEY_PARAM_EC_P' =>                            "p",
+    'PKEY_PARAM_EC_A' =>                            "a",
+    'PKEY_PARAM_EC_B' =>                            "b",
+    'PKEY_PARAM_EC_GENERATOR' =>                    "generator",
+    'PKEY_PARAM_EC_ORDER' =>                        "order",
+    'PKEY_PARAM_EC_COFACTOR' =>                     "cofactor",
+    'PKEY_PARAM_EC_SEED' =>                         "seed",
+    'PKEY_PARAM_EC_CHAR2_M' =>                      "m",
+    'PKEY_PARAM_EC_CHAR2_TYPE' =>                   "basis-type",
+    'PKEY_PARAM_EC_CHAR2_TP_BASIS' =>               "tp",
+    'PKEY_PARAM_EC_CHAR2_PP_K1' =>                  "k1",
+    'PKEY_PARAM_EC_CHAR2_PP_K2' =>                  "k2",
+    'PKEY_PARAM_EC_CHAR2_PP_K3' =>                  "k3",
+    'PKEY_PARAM_EC_DECODED_FROM_EXPLICIT_PARAMS' => "decoded-from-explicit",
+
+# Elliptic Curve Key Parameters
+    'PKEY_PARAM_USE_COFACTOR_FLAG' => "use-cofactor-flag",
+    'PKEY_PARAM_USE_COFACTOR_ECDH' => '*PKEY_PARAM_USE_COFACTOR_FLAG',
+
+# RSA Keys
+#
+# n, e, d are the usual public and private key components
+#
+# rsa-num is the number of factors, including p and q
+# rsa-factor is used for each factor: p, q, r_i (i = 3, ...)
+# rsa-exponent is used for each exponent: dP, dQ, d_i (i = 3, ...)
+# rsa-coefficient is used for each coefficient: qInv, t_i (i = 3, ...)
+#
+# The number of rsa-factor items must be equal to the number of rsa-exponent
+# items, and the number of rsa-coefficients must be one less.
+# (the base i for the coefficients is 2, not 1, at least as implied by
+# RFC 8017)
+
+    'PKEY_PARAM_RSA_N' =>           "n",
+    'PKEY_PARAM_RSA_E' =>           "e",
+    'PKEY_PARAM_RSA_D' =>           "d",
+    'PKEY_PARAM_RSA_FACTOR' =>      "rsa-factor",
+    'PKEY_PARAM_RSA_EXPONENT' =>    "rsa-exponent",
+    'PKEY_PARAM_RSA_COEFFICIENT' => "rsa-coefficient",
+    'PKEY_PARAM_RSA_FACTOR1' =>      "rsa-factor1",
+    'PKEY_PARAM_RSA_FACTOR2' =>      "rsa-factor2",
+    'PKEY_PARAM_RSA_FACTOR3' =>      "rsa-factor3",
+    'PKEY_PARAM_RSA_FACTOR4' =>      "rsa-factor4",
+    'PKEY_PARAM_RSA_FACTOR5' =>      "rsa-factor5",
+    'PKEY_PARAM_RSA_FACTOR6' =>      "rsa-factor6",
+    'PKEY_PARAM_RSA_FACTOR7' =>      "rsa-factor7",
+    'PKEY_PARAM_RSA_FACTOR8' =>      "rsa-factor8",
+    'PKEY_PARAM_RSA_FACTOR9' =>      "rsa-factor9",
+    'PKEY_PARAM_RSA_FACTOR10' =>     "rsa-factor10",
+    'PKEY_PARAM_RSA_EXPONENT1' =>    "rsa-exponent1",
+    'PKEY_PARAM_RSA_EXPONENT2' =>    "rsa-exponent2",
+    'PKEY_PARAM_RSA_EXPONENT3' =>    "rsa-exponent3",
+    'PKEY_PARAM_RSA_EXPONENT4' =>    "rsa-exponent4",
+    'PKEY_PARAM_RSA_EXPONENT5' =>    "rsa-exponent5",
+    'PKEY_PARAM_RSA_EXPONENT6' =>    "rsa-exponent6",
+    'PKEY_PARAM_RSA_EXPONENT7' =>    "rsa-exponent7",
+    'PKEY_PARAM_RSA_EXPONENT8' =>    "rsa-exponent8",
+    'PKEY_PARAM_RSA_EXPONENT9' =>    "rsa-exponent9",
+    'PKEY_PARAM_RSA_EXPONENT10' =>   "rsa-exponent10",
+    'PKEY_PARAM_RSA_COEFFICIENT1' => "rsa-coefficient1",
+    'PKEY_PARAM_RSA_COEFFICIENT2' => "rsa-coefficient2",
+    'PKEY_PARAM_RSA_COEFFICIENT3' => "rsa-coefficient3",
+    'PKEY_PARAM_RSA_COEFFICIENT4' => "rsa-coefficient4",
+    'PKEY_PARAM_RSA_COEFFICIENT5' => "rsa-coefficient5",
+    'PKEY_PARAM_RSA_COEFFICIENT6' => "rsa-coefficient6",
+    'PKEY_PARAM_RSA_COEFFICIENT7' => "rsa-coefficient7",
+    'PKEY_PARAM_RSA_COEFFICIENT8' => "rsa-coefficient8",
+    'PKEY_PARAM_RSA_COEFFICIENT9' => "rsa-coefficient9",
+
+# Key generation parameters
+    'PKEY_PARAM_RSA_BITS' =>             '*PKEY_PARAM_BITS',
+    'PKEY_PARAM_RSA_PRIMES' =>           "primes",
+    'PKEY_PARAM_RSA_DIGEST' =>           '*PKEY_PARAM_DIGEST',
+    'PKEY_PARAM_RSA_DIGEST_PROPS' =>     '*PKEY_PARAM_PROPERTIES',
+    'PKEY_PARAM_RSA_MASKGENFUNC' =>      '*PKEY_PARAM_MASKGENFUNC',
+    'PKEY_PARAM_RSA_MGF1_DIGEST' =>      '*PKEY_PARAM_MGF1_DIGEST',
+    'PKEY_PARAM_RSA_PSS_SALTLEN' =>      "saltlen",
+
+# EC, X25519 and X448 Key generation parameters
+    'PKEY_PARAM_DHKEM_IKM' =>        "dhkem-ikm",
+
+# Key generation parameters
+    'PKEY_PARAM_FFC_TYPE' =>         "type",
+    'PKEY_PARAM_FFC_PBITS' =>        "pbits",
+    'PKEY_PARAM_FFC_QBITS' =>        "qbits",
+    'PKEY_PARAM_FFC_DIGEST' =>       '*PKEY_PARAM_DIGEST',
+    'PKEY_PARAM_FFC_DIGEST_PROPS' => '*PKEY_PARAM_PROPERTIES',
+
+    'PKEY_PARAM_EC_ENCODING' =>                "encoding",# utf8_string
+    'PKEY_PARAM_EC_POINT_CONVERSION_FORMAT' => "point-format",
+    'PKEY_PARAM_EC_GROUP_CHECK_TYPE' =>        "group-check",
+    'PKEY_PARAM_EC_INCLUDE_PUBLIC' =>          "include-public",
+
+# Key Exchange parameters
+    'EXCHANGE_PARAM_PAD' =>                   "pad",# uint
+    'EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE' => "ecdh-cofactor-mode",# int
+    'EXCHANGE_PARAM_KDF_TYPE' =>              "kdf-type",# utf8_string
+    'EXCHANGE_PARAM_KDF_DIGEST' =>            "kdf-digest",# utf8_string
+    'EXCHANGE_PARAM_KDF_DIGEST_PROPS' =>      "kdf-digest-props",# utf8_string
+    'EXCHANGE_PARAM_KDF_OUTLEN' =>            "kdf-outlen",# size_t
+# The following parameter is an octet_string on set and an octet_ptr on get
+    'EXCHANGE_PARAM_KDF_UKM' =>               "kdf-ukm",
+
+# Signature parameters
+    'SIGNATURE_PARAM_ALGORITHM_ID' =>       "algorithm-id",
+    'SIGNATURE_PARAM_PAD_MODE' =>           '*PKEY_PARAM_PAD_MODE',
+    'SIGNATURE_PARAM_DIGEST' =>             '*PKEY_PARAM_DIGEST',
+    'SIGNATURE_PARAM_PROPERTIES' =>         '*PKEY_PARAM_PROPERTIES',
+    'SIGNATURE_PARAM_PSS_SALTLEN' =>        "saltlen",
+    'SIGNATURE_PARAM_MGF1_DIGEST' =>        '*PKEY_PARAM_MGF1_DIGEST',
+    'SIGNATURE_PARAM_MGF1_PROPERTIES' =>    '*PKEY_PARAM_MGF1_PROPERTIES',
+    'SIGNATURE_PARAM_DIGEST_SIZE' =>        '*PKEY_PARAM_DIGEST_SIZE',
+    'SIGNATURE_PARAM_NONCE_TYPE' =>         "nonce-type",
+    'SIGNATURE_PARAM_INSTANCE' =>           "instance",
+    'SIGNATURE_PARAM_CONTEXT_STRING' =>     "context-string",
+
+# Asym cipher parameters
+    'ASYM_CIPHER_PARAM_DIGEST' =>                   '*PKEY_PARAM_DIGEST',
+    'ASYM_CIPHER_PARAM_PROPERTIES' =>               '*PKEY_PARAM_PROPERTIES',
+    'ASYM_CIPHER_PARAM_ENGINE' =>                   '*PKEY_PARAM_ENGINE',
+    'ASYM_CIPHER_PARAM_PAD_MODE' =>                 '*PKEY_PARAM_PAD_MODE',
+    'ASYM_CIPHER_PARAM_MGF1_DIGEST' =>              '*PKEY_PARAM_MGF1_DIGEST',
+    'ASYM_CIPHER_PARAM_MGF1_DIGEST_PROPS' =>        '*PKEY_PARAM_MGF1_PROPERTIES',
+    'ASYM_CIPHER_PARAM_OAEP_DIGEST' =>              '*ALG_PARAM_DIGEST',
+    'ASYM_CIPHER_PARAM_OAEP_DIGEST_PROPS' =>        "digest-props",
+# The following parameter is an octet_string on set and an octet_ptr on get
+    'ASYM_CIPHER_PARAM_OAEP_LABEL' =>               "oaep-label",
+    'ASYM_CIPHER_PARAM_TLS_CLIENT_VERSION' =>       "tls-client-version",
+    'ASYM_CIPHER_PARAM_TLS_NEGOTIATED_VERSION' =>   "tls-negotiated-version",
+    'ASYM_CIPHER_PARAM_IMPLICIT_REJECTION' =>       "implicit-rejection",
+
+# Encoder / decoder parameters
+
+    'ENCODER_PARAM_CIPHER' =>           '*ALG_PARAM_CIPHER',
+    'ENCODER_PARAM_PROPERTIES' =>       '*ALG_PARAM_PROPERTIES',
+# Currently PVK only, but reusable for others as needed
+    'ENCODER_PARAM_ENCRYPT_LEVEL' =>    "encrypt-level",
+    'ENCODER_PARAM_SAVE_PARAMETERS' =>  "save-parameters",# integer
+
+    'DECODER_PARAM_PROPERTIES' =>       '*ALG_PARAM_PROPERTIES',
+
+# Passphrase callback parameters
+    'PASSPHRASE_PARAM_INFO' =>          "info",
+
+# Keygen callback parameters, from provider to libcrypto
+    'GEN_PARAM_POTENTIAL' =>            "potential",# integer
+    'GEN_PARAM_ITERATION' =>            "iteration",# integer
+
+# ACVP Test parameters : These should not be used normally
+    'PKEY_PARAM_RSA_TEST_XP1' => "xp1",
+    'PKEY_PARAM_RSA_TEST_XP2' => "xp2",
+    'PKEY_PARAM_RSA_TEST_XP' =>  "xp",
+    'PKEY_PARAM_RSA_TEST_XQ1' => "xq1",
+    'PKEY_PARAM_RSA_TEST_XQ2' => "xq2",
+    'PKEY_PARAM_RSA_TEST_XQ' =>  "xq",
+    'PKEY_PARAM_RSA_TEST_P1' =>  "p1",
+    'PKEY_PARAM_RSA_TEST_P2' =>  "p2",
+    'PKEY_PARAM_RSA_TEST_Q1' =>  "q1",
+    'PKEY_PARAM_RSA_TEST_Q2' =>  "q2",
+    'SIGNATURE_PARAM_KAT' =>     "kat",
+
+# KEM parameters
+    'KEM_PARAM_OPERATION' =>            "operation",
+    'KEM_PARAM_IKME' =>                 "ikme",
+
+# Capabilities
+
+# TLS-GROUP Capability
+    'CAPABILITY_TLS_GROUP_NAME' =>              "tls-group-name",
+    'CAPABILITY_TLS_GROUP_NAME_INTERNAL' =>     "tls-group-name-internal",
+    'CAPABILITY_TLS_GROUP_ID' =>                "tls-group-id",
+    'CAPABILITY_TLS_GROUP_ALG' =>               "tls-group-alg",
+    'CAPABILITY_TLS_GROUP_SECURITY_BITS' =>     "tls-group-sec-bits",
+    'CAPABILITY_TLS_GROUP_IS_KEM' =>            "tls-group-is-kem",
+    'CAPABILITY_TLS_GROUP_MIN_TLS' =>           "tls-min-tls",
+    'CAPABILITY_TLS_GROUP_MAX_TLS' =>           "tls-max-tls",
+    'CAPABILITY_TLS_GROUP_MIN_DTLS' =>          "tls-min-dtls",
+    'CAPABILITY_TLS_GROUP_MAX_DTLS' =>          "tls-max-dtls",
+
+# TLS-SIGALG Capability
+    'CAPABILITY_TLS_SIGALG_IANA_NAME' =>         "tls-sigalg-iana-name",
+    'CAPABILITY_TLS_SIGALG_CODE_POINT' =>        "tls-sigalg-code-point",
+    'CAPABILITY_TLS_SIGALG_NAME' =>              "tls-sigalg-name",
+    'CAPABILITY_TLS_SIGALG_OID' =>               "tls-sigalg-oid",
+    'CAPABILITY_TLS_SIGALG_SIG_NAME' =>          "tls-sigalg-sig-name",
+    'CAPABILITY_TLS_SIGALG_SIG_OID' =>           "tls-sigalg-sig-oid",
+    'CAPABILITY_TLS_SIGALG_HASH_NAME' =>         "tls-sigalg-hash-name",
+    'CAPABILITY_TLS_SIGALG_HASH_OID' =>          "tls-sigalg-hash-oid",
+    'CAPABILITY_TLS_SIGALG_KEYTYPE' =>           "tls-sigalg-keytype",
+    'CAPABILITY_TLS_SIGALG_KEYTYPE_OID' =>       "tls-sigalg-keytype-oid",
+    'CAPABILITY_TLS_SIGALG_SECURITY_BITS' =>     "tls-sigalg-sec-bits",
+    'CAPABILITY_TLS_SIGALG_MIN_TLS' =>           "tls-min-tls",
+    'CAPABILITY_TLS_SIGALG_MAX_TLS' =>           "tls-max-tls",
+
+# storemgmt parameters
+
+
+# Used by storemgmt_ctx_set_params():
+#
+# - STORE_PARAM_EXPECT is an INTEGER, and the value is any of the
+#   STORE_INFO numbers.  This is used to set the expected type of
+#   object loaded.
+#
+# - STORE_PARAM_SUBJECT, STORE_PARAM_ISSUER,
+#   STORE_PARAM_SERIAL, STORE_PARAM_FINGERPRINT,
+#   STORE_PARAM_DIGEST, STORE_PARAM_ALIAS
+#   are used as search criteria.
+#   (STORE_PARAM_DIGEST is used with STORE_PARAM_FINGERPRINT)
+
+    'STORE_PARAM_EXPECT' =>     "expect",       # INTEGER
+    'STORE_PARAM_SUBJECT' =>    "subject",      # DER blob => OCTET_STRING
+    'STORE_PARAM_ISSUER' =>     "name",         # DER blob => OCTET_STRING
+    'STORE_PARAM_SERIAL' =>     "serial",       # INTEGER
+    'STORE_PARAM_DIGEST' =>     "digest",       # UTF8_STRING
+    'STORE_PARAM_FINGERPRINT' => "fingerprint", # OCTET_STRING
+    'STORE_PARAM_ALIAS' =>      "alias",        # UTF8_STRING
+
+# You may want to pass properties for the provider implementation to use
+    'STORE_PARAM_PROPERTIES' => "properties",   # utf8_string
+# DECODER input type if a decoder is used by the store
+    'STORE_PARAM_INPUT_TYPE' => "input-type",   # UTF8_STRING
+
+
+# Libssl record layer
+    'LIBSSL_RECORD_LAYER_PARAM_OPTIONS' =>        "options",
+    'LIBSSL_RECORD_LAYER_PARAM_MODE' =>           "mode",
+    'LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD' =>     "read_ahead",
+    'LIBSSL_RECORD_LAYER_READ_BUFFER_LEN' =>      "read_buffer_len",
+    'LIBSSL_RECORD_LAYER_PARAM_USE_ETM' =>        "use_etm",
+    'LIBSSL_RECORD_LAYER_PARAM_STREAM_MAC' =>     "stream_mac",
+    'LIBSSL_RECORD_LAYER_PARAM_TLSTREE' =>        "tlstree",
+    'LIBSSL_RECORD_LAYER_PARAM_MAX_FRAG_LEN' =>   "max_frag_len",
+    'LIBSSL_RECORD_LAYER_PARAM_MAX_EARLY_DATA' => "max_early_data",
+    'LIBSSL_RECORD_LAYER_PARAM_BLOCK_PADDING' =>  "block_padding",
+);
+
+# Generate string based macros for public consumption
+sub generate_public_macros {
+    my @macros = ();
+
+    foreach my $name (keys %params) {
+        my $val = $params{$name};
+        my $def = '# define OSSL_' . $name . ' ';
+
+        if (substr($val, 0, 1) eq '*') {
+            $def .= 'OSSL_' . substr($val, 1);
+        } else {
+            $def .= '"' . $val . '"';
+        }
+        push(@macros, $def)
+    }
+    return join("\n", sort @macros);
+}
+
+# Generate number based macros for internal use
+# The numbers are unique per string
+sub generate_internal_macros {
+    my @macros = ();
+    my $count = 0;
+    my %reverse;
+
+    # Determine the number for each unique string
+    # Sort the names to improve the chance of cache coherency
+    foreach my $name (sort keys %params) {
+        my $val = $params{$name};
+
+        if (substr($val, 0, 1) ne '*' and not defined $reverse{$val}) {
+            $reverse{$val} = $count++;
+        }
+    }
+
+    # Output the defines
+    foreach my $name (keys %params) {
+        my $val = $params{$name};
+        my $def = '#define PIDX_' . $name . ' ';
+
+        if (substr($val, 0, 1) eq '*') {
+            $def .= 'PIDX_' . substr($val, 1);
+        } else {
+            $def .= $reverse{$val};
+        }
+        push(@macros, $def)
+    }
+    return "#define NUM_PIDX $count\n\n" . join("\n", sort @macros);
+}
+
+sub generate_trie {
+    my %trie;
+    my $nodes = 0;
+    my $chars = 0;
+
+    foreach my $name (keys %params) {
+        my $val = $params{$name};
+        if (substr($val, 0, 1) ne '*') {
+            my $cursor = \%trie;
+
+            $chars += length($val);
+            for my $i (0 .. length($val) - 1) {
+                my $c = substr($val, $i, 1);
+
+                if (not $case_sensitive) {
+                    $c = '_' if $c eq '-';
+                    $c = lc $c;
+                }
+
+                if (not defined $$cursor{$c}) {
+                    $$cursor{$c} = {};
+                    $nodes++;
+                }
+                $cursor = %$cursor{$c};
+            }
+            $$cursor{'val'} = $name;
+        }
+    }
+    #print "\n\n/* $nodes nodes for $chars letters*/\n\n";
+    return %trie;
+}
+
+sub generate_code_from_trie {
+    my $n = shift;
+    my $trieref = shift;
+    my $idt = "    ";
+    my $indent0 = $idt x ($n + 1);
+    my $indent1 = $indent0 . $idt;
+    my $strcmp = $case_sensitive ? 'strcmp' : 'strcasecmp';
+
+    print "int ossl_param_find_pidx(const char *s)\n{\n" if $n == 0;
+
+    if ($trieref->{'suffix'}) {
+        my $suf = $trieref->{'suffix'};
+
+        printf "%sif ($strcmp(\"$suf\", s + $n) == 0", $indent0;
+        if (not $case_sensitive) {
+            $suf =~ tr/_/-/;
+            print " || $strcmp(\"$suf\", s + $n) == 0"
+                if ($suf ne $trieref->{'suffix'});
+        }
+        printf ")\n%sreturn PIDX_%s;\n", $indent1, $trieref->{'name'};
+        #printf "%sbreak;\n", $indent0;
+        return;
+    }
+
+    printf "%sswitch(s\[%d\]) {\n", $indent0, $n;
+    printf "%sdefault:\n", $indent0;
+    for my $l (sort keys %$trieref) {
+        if ($l eq 'val') {
+            printf "%sbreak;\n", $indent1;
+            printf "%scase '\\0':\n", $indent0;
+            printf "%sreturn PIDX_%s;\n", $indent1, $trieref->{'val'};
+        } else {
+            printf "%sbreak;\n", $indent1;
+            printf "%scase '%s':", $indent0, $l;
+            if (not $case_sensitive) {
+                print "   case '-':" if ($l eq '_');
+                printf "   case '%s':", uc $l if ($l =~ /[a-z]/);
+            }
+            print "\n";
+            generate_code_from_trie($n + 1, $trieref->{$l});
+        }
+    }
+    printf "%s}\n", $indent0;
+    print "    return -1;\n}\n" if $n == 0;
+    return "";
+}
+
+# Find long endings and cache what they resolve to
+sub locate_long_endings {
+    my $trieref = shift;
+    my @names = keys %$trieref;
+    my $num = @names;
+
+    return (1, '', $trieref->{$names[0]}) if ($num == 1 and $names[0] eq 'val');
+
+    if ($num == 1) {
+        my ($res, $suffix, $name) = locate_long_endings($trieref->{$names[0]});
+        my $e = $names[0] . $suffix;
+        if ($res) {
+            $trieref->{'suffix'} = $e;
+            $trieref->{'name'} = $name;
+        }
+        return $res, $e, $name;
+    }
+
+    for my $l (@names) {
+        if ($l ne 'val') {
+            my ($res, $suffix, $name) = locate_long_endings($trieref->{$l});
+        }
+    }
+    return 0, '';
+}
+
+sub produce_decoder {
+    my %t = generate_trie();
+    my $s;
+
+    locate_long_endings(\%t);
+
+    open local *STDOUT, '>', \$s;
+    generate_code_from_trie(0, \%t);
+    return $s;
+}