XLM support?

[thomasb9511]

Would it be possible to add support to gen Stellar XLM addresses?

[10gic]

XLM use ED25519, rather than secp256k1. It can't support XLM only by adding configuration in file base58prefix.txt. As OpenSSL support Ed25519, it's not very difficult to support it.

https://github.com/stellar/stellar-protocol/blob/master/ecosystem/sep-0005.md https://fchainio.github.io/fireflydoc/en/stellar/#stellar-101

[10gic]

@thomasb9511 XLM is supported now.

Prefix example:

$ ./vanitygen++ -C XLM GAAA
Generating XLM Address
XLM patterns GAAA
XLM Address: GAAAI4FDQSNOYE2LRQTUEOYBALDHBA5X2W6Y3DXKHTLWBY3MZIOTIXBO
XLM Privkey: SAOAWAUMIO44YQME4PH7MQKK2LAAQ4UTL6IHTQ2LOZARZ4SFILZI5UYF

Postfix example:

$ ./vanitygen++ -C XLM -r 'XLM$'
Generating XLM Address
XLM patterns XLM$
XLM Address: GDQ5KHUHX2SQ5II6B3PW6VSJHWOLIZ2OW45PRY4IZH5FBWJANQ2LCXLM
XLM Privkey: SCLO4IXZN54VPDTFTIF6Y5ZYWJGZZZGOBA3VU3Z5JFN47TRJHROCAHSH

It's not supported in GPU version (oclvanitygen++) currently. The CPU version (vanitygen++) also fast.

[thomasb9511]

@10gic

I seem to have issues compiling.

cc -ggdb -O3 -Wall   -c -o vanitygen.o vanitygen.c
cc -ggdb -O3 -Wall   -c -o pattern.o pattern.c
cc -ggdb -O3 -Wall   -c -o util.o util.c
cc -ggdb -O3 -Wall   -c -o groestl.o groestl.c
cc -ggdb -O3 -Wall   -c -o sha3.o sha3.c
cc -ggdb -O3 -Wall   -c -o ed25519.o ed25519.c
ed25519.c: In function ‘thread_loop_ed25519’:
ed25519.c:82:46: error: ‘EVP_PKEY_ED25519’ undeclared (first use in this function); did you mean ‘EVP_PKEY_DSA1’?
     EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_ED25519, NULL);
                                              ^~~~~~~~~~~~~~~~
                                              EVP_PKEY_DSA1
ed25519.c:82:46: note: each undeclared identifier is reported only once for each function it appears in
ed25519.c:112:9: warning: implicit declaration of function ‘EVP_PKEY_get_raw_public_key’; did you mean ‘EC_KEY_get0_public_key’? [-Wimplicit-function-declaration]
         EVP_PKEY_get_raw_public_key(pkey, (unsigned char *)&pub_buf, &buf_len);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~
         EC_KEY_get0_public_key
ed25519.c:148:17: warning: implicit declaration of function ‘EVP_PKEY_get_raw_private_key’; did you mean ‘EC_KEY_get0_private_key’? [-Wimplicit-function-declaration]
                 EVP_PKEY_get_raw_private_key(pkey, (unsigned char *)&priv_buf, &buf_len);
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
                 EC_KEY_get0_private_key
make: *** [<builtin>: ed25519.o] Error 1

[thomasb9511]

Turns out my openssl libraries weren't 1.1.1

[10gic]

Yes, openssl 1.1.1 is requried for ED25519. https://www.openssl.org/news/cl111.txt