71   const encoding = getDefaultEncoding();
72   keyEncoding = keyEncoding || encoding;
73   genEncoding = genEncoding || encoding;
118 function dhGenerateKeys(encoding) {  argument
120   encoding = encoding || getDefaultEncoding();
121   return encode(keys, encoding);
130   const encoding = getDefaultEncoding();
131   inEnc = inEnc || encoding;
132   outEnc = outEnc || encoding;
144 function dhGetPrime(encoding) {  argument
146   encoding = encoding || getDefaultEncoding();
147   return encode(prime, encoding);
155 function dhGetGenerator(encoding) {  argument
157   encoding = encoding || getDefaultEncoding();
158   return encode(generator, encoding);
166 function dhGetPublicKey(encoding) {  argument
168   encoding = encoding || getDefaultEncoding();
169   return encode(key, encoding);
177 function dhGetPrivateKey(encoding) {  argument
179   encoding = encoding || getDefaultEncoding();
180   return encode(key, encoding);
184 DiffieHellman.prototype.setPublicKey = function setPublicKey(key, encoding) {  argument
185   encoding = encoding || getDefaultEncoding();
186   this[kHandle].setPublicKey(toBuf(key, encoding));
191 DiffieHellman.prototype.setPrivateKey = function setPrivateKey(key, encoding) {  argument
192   encoding = encoding || getDefaultEncoding();
193   this[kHandle].setPrivateKey(toBuf(key, encoding));
211 ECDH.prototype.generateKeys = function generateKeys(encoding, format) {  argument
214   return this.getPublicKey(encoding, format);
217 ECDH.prototype.getPublicKey = function getPublicKey(encoding, format) {  argument
220   encoding = encoding || getDefaultEncoding();
221   return encode(key, encoding);
235   const encoding = getDefaultEncoding();
236   inEnc = inEnc || encoding;
237   outEnc = outEnc || encoding;
243 function encode(buffer, encoding) {  argument
244   if (encoding && encoding !== 'buffer')
245     buffer = buffer.toString(encoding);