crypto: frozen on RSA key generation with public exponent 3

Version: 10.16.3
Platform: Darwin Kernel Version 18.6.0: Thu Apr 25 23:16:27 PDT 2019
Subsystem:

NodeJS is frozen on RSA key generation with public exponent 3. It works fine in NodeJS v12

const crypto = require("crypto");

const keys = crypto.generateKeyPairSync("rsa", {
  modulusLength: 2048,
  publicExponent: 3,
  publicKeyEncoding: {
    format: "der",
    type: "spki",
  },
  privateKeyEncoding: {
    format: "der",
    type: "pkcs8",
  },
});

console.log(keys);

For me (on Linux) node immediately segfaults when generating the key pair:

#0  __memmove_sse2_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:299
#1  0x0000555557d9de45 in BN_copy (a=0x555559c8fc30, b=0x555559c8fe80) at ../deps/openssl/openssl/crypto/bn/bn_lib.c:291
#2  0x0000555557e81fd0 in rsa_builtin_keygen (rsa=0x555559c89450, bits=2048, primes=2, e_value=0x555559c8fe80, cb=0x0) at ../deps/openssl/openssl/crypto/rsa/rsa_gen.c:144
#3  0x0000555557e81b07 in RSA_generate_multi_prime_key (rsa=0x555559c89450, bits=2048, primes=2, e_value=0x555559c8fe80, cb=0x0) at ../deps/openssl/openssl/crypto/rsa/rsa_gen.c:61
#4  0x0000555557e89f44 in pkey_rsa_keygen (ctx=0x555559c38630, pkey=0x555559c8c120) at ../deps/openssl/openssl/crypto/rsa/rsa_pmeth.c:743
#5  0x0000555557e40724 in EVP_PKEY_keygen (ctx=0x555559c38630, ppkey=0x7fffffff7530) at ../deps/openssl/openssl/crypto/evp/pmeth_gn.c:108
#6  0x0000555556d242d9 in node::crypto::GenerateKeyPairJob::GenerateKey (this=0x555559c39a90) at ../src/node_crypto.cc:5019
#7  0x0000555556d241d8 in node::crypto::GenerateKeyPairJob::DoThreadPoolWork (this=0x555559c39a90) at ../src/node_crypto.cc:4996
#8  0x0000555556d1b0b9 in node::crypto::GenerateKeyPair (args=..., n_opts=2, config=std::unique_ptr<node::crypto::KeyPairGenerationConfig> = {...}) at ../src/node_crypto.cc:5240
#9  0x0000555556d1b448 in node::crypto::GenerateKeyPairRSA (args=...) at ../src/node_crypto.cc:5262
#10 0x0000555556fd964a in v8::internal::FunctionCallbackArguments::Call (this=0x7fffffff7830, handler=0x28165991409) at ../deps/v8/src/api-arguments-inl.h:94
#11 0x0000555556fdc4ce in v8::internal::(anonymous namespace)::HandleApiCallHelper<false> (isolate=0x555559bc19f0, function=..., new_target=..., fun_data=..., receiver=..., args=...) at ../deps/v8/src/builtins/builtins-api.cc:109
#12 0x0000555556fda36b in v8::internal::Builtin_Impl_HandleApiCall (args=..., isolate=0x555559bc19f0) at ../deps/v8/src/builtins/builtins-api.cc:139
#13 0x0000555556fda105 in v8::internal::Builtin_HandleApiCall (args_length=14, args_object=0x7fffffff7a68, isolate=0x555559bc19f0) at ../deps/v8/src/builtins/builtins-api.cc:127

EDIT: Same crash happens through node v11.15.0. node v12.0.0 was the first release where it didn't crash.

After bisecting it seems at least the segfault I was experiencing was fixed in 0911e88.

crypto: fix rsa key gen with non-default exponent

This bug was fixed in node 12 and 10.17.0.

The v11 line is affected, but EOL.

Navigation Menu

Repository navigation

crypto: frozen on RSA key generation with public exponent 3 #29433

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

crypto: frozen on RSA key generation with public exponent 3 #29433

Description

Activity

mscdex commented on Sep 4, 2019

mscdex commented on Sep 4, 2019

tniessen commented on Oct 26, 2019

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions