diff --git a/src/node_crypto.cc b/src/node_crypto.cc
index dac4a2e76bf..5ef7d96007b 100644
--- a/src/node_crypto.cc
+++ b/src/node_crypto.cc
@@ -229,8 +229,6 @@ static void crypto_lock_cb(int mode, int n, const char* file, int line) {
 }
 
 
-// This callback is used by OpenSSL when it needs to query for the passphrase
-// which may be used for encrypted PEM structures.
 static int PasswordCallback(char *buf, int size, int rwflag, void *u) {
   if (u) {
     size_t buflen = static_cast<size_t>(size);
@@ -244,6 +242,16 @@ static int PasswordCallback(char *buf, int size, int rwflag, void *u) {
 }
 
 
+// This callback is used to avoid the default passphrase callback in OpenSSL
+// which will typically prompt for the passphrase. The prompting is designed
+// for the OpenSSL CLI, but works poorly for Node.js because it involves
+// synchronous interaction with the controlling terminal, something we never
+// want, and use this function to avoid it.
+static int NoPasswordCallback(char *buf, int size, int rwflag, void *u) {
+  return 0;
+}
+
+
 void ThrowCryptoError(Environment* env,
                       unsigned long err,  // NOLINT(runtime/int)
                       const char* default_message = nullptr) {
@@ -613,7 +621,7 @@ int SSL_CTX_use_certificate_chain(SSL_CTX* ctx,
   // that we are interested in
   ERR_clear_error();
 
-  x = PEM_read_bio_X509_AUX(in, nullptr, PasswordCallback, nullptr);
+  x = PEM_read_bio_X509_AUX(in, nullptr, NoPasswordCallback, nullptr);
 
   if (x == nullptr) {
     SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE, ERR_R_PEM_LIB);
@@ -631,7 +639,10 @@ int SSL_CTX_use_certificate_chain(SSL_CTX* ctx,
     goto done;
   }
 
-  while ((extra = PEM_read_bio_X509(in, nullptr, PasswordCallback, nullptr))) {
+  while ((extra = PEM_read_bio_X509(in,
+                                    nullptr,
+                                    NoPasswordCallback,
+                                    nullptr))) {
     if (sk_X509_push(extra_certs, extra))
       continue;
 
@@ -728,7 +739,7 @@ static X509_STORE* NewRootCertStore() {
   if (root_certs_vector.empty()) {
     for (size_t i = 0; i < arraysize(root_certs); i++) {
       BIO* bp = NodeBIO::NewFixed(root_certs[i], strlen(root_certs[i]));
-      X509 *x509 = PEM_read_bio_X509(bp, nullptr, PasswordCallback, nullptr);
+      X509 *x509 = PEM_read_bio_X509(bp, nullptr, NoPasswordCallback, nullptr);
       BIO_free(bp);
 
       // Parse errors from the built-in roots are fatal.
@@ -771,7 +782,7 @@ void SecureContext::AddCACert(const FunctionCallbackInfo<Value>& args) {
 
   X509_STORE* cert_store = SSL_CTX_get_cert_store(sc->ctx_);
   while (X509* x509 =
-             PEM_read_bio_X509(bio, nullptr, PasswordCallback, nullptr)) {
+             PEM_read_bio_X509(bio, nullptr, NoPasswordCallback, nullptr)) {
     if (cert_store == root_cert_store) {
       cert_store = NewRootCertStore();
       SSL_CTX_set_cert_store(sc->ctx_, cert_store);
@@ -803,7 +814,7 @@ void SecureContext::AddCRL(const FunctionCallbackInfo<Value>& args) {
     return;
 
   X509_CRL* crl =
-      PEM_read_bio_X509_CRL(bio, nullptr, PasswordCallback, nullptr);
+      PEM_read_bio_X509_CRL(bio, nullptr, NoPasswordCallback, nullptr);
 
   if (crl == nullptr) {
     BIO_free_all(bio);
@@ -842,7 +853,7 @@ static unsigned long AddCertsFromFile(  // NOLINT(runtime/int)
   }
 
   while (X509* x509 =
-      PEM_read_bio_X509(bio, nullptr, PasswordCallback, nullptr)) {
+      PEM_read_bio_X509(bio, nullptr, NoPasswordCallback, nullptr)) {
     X509_STORE_add_cert(store, x509);
     X509_free(x509);
   }
@@ -4387,7 +4398,7 @@ SignBase::Error Verify::VerifyFinal(const char* key_pem,
   // Split this out into a separate function once we have more than one
   // consumer of public keys.
   if (strncmp(key_pem, PUBLIC_KEY_PFX, PUBLIC_KEY_PFX_LEN) == 0) {
-    pkey = PEM_read_bio_PUBKEY(bp, nullptr, PasswordCallback, nullptr);
+    pkey = PEM_read_bio_PUBKEY(bp, nullptr, NoPasswordCallback, nullptr);
     if (pkey == nullptr)
       goto exit;
   } else if (strncmp(key_pem, PUBRSA_KEY_PFX, PUBRSA_KEY_PFX_LEN) == 0) {
@@ -4403,7 +4414,7 @@ SignBase::Error Verify::VerifyFinal(const char* key_pem,
       goto exit;
   } else {
     // X.509 fallback
-    x509 = PEM_read_bio_X509(bp, nullptr, PasswordCallback, nullptr);
+    x509 = PEM_read_bio_X509(bp, nullptr, NoPasswordCallback, nullptr);
     if (x509 == nullptr)
       goto exit;
 
@@ -4530,7 +4541,7 @@ bool PublicKeyCipher::Cipher(const char* key_pem,
       goto exit;
   } else if (operation == kPublic &&
              strncmp(key_pem, CERTIFICATE_PFX, CERTIFICATE_PFX_LEN) == 0) {
-    x509 = PEM_read_bio_X509(bp, nullptr, PasswordCallback, nullptr);
+    x509 = PEM_read_bio_X509(bp, nullptr, NoPasswordCallback, nullptr);
     if (x509 == nullptr)
       goto exit;