The CPU performance is a joke though. c1 from instantcloud.io: ubuntu@c1-10-1-33-39:~$ openssl speed rsa Doing 512 bit private rsa's for 10s: 11119 512 bi

The CPU performance is a joke though. c1 from instantcloud.io: ubuntu@c1-10-1-33-39:~$ openssl speed rsa Doing 512 bit private rsa's for 10s: 11119 512 bit private RSA's in 10.00s Doing 512 bit public rsa's for 10s: 111478 512 bit public RSA's in 10.00s Doing 1024 bit private rsa's for 10s: 1950 1024 bit private RSA's in 10.00s Doing 1024 bit public rsa's for 10s: 34638 1024 bit public RSA's in 10.00s Doing 2048 bit private rsa's for 10s: 291 2048 bit private RSA's in 10.01s Doing 2048 bit public rsa's for 10s: 9393 2048 bit public RSA's in 10.00s Doing 4096 bit private rsa's for 10s: 40 4096 bit private RSA's in 10.16s Doing 4096 bit public rsa's for 10s: 2402 4096 bit public RSA's in 10.01s OpenSSL 1.0.1f 6 Jan 2014 built on: Thu Oct 16 16:07:24 UTC 2014 options:bn(64,32) rc4(ptr,char) des(idx,cisc,16,long) aes(partial) blowfish(ptr) compiler: cc -fPIC -DOPENSSL_PIC -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DL_ENDIAN -DTERMIO -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -Wl,-Bsymbolic-functions -Wl,-z,relro -Wa,--noexecstack -Wall -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DAES_ASM -DGHASH_ASM sign verify sign/s verify/s rsa 512 bits 0.000899s 0.000090s 1111.9 11147.8 rsa 1024 bits 0.005128s 0.000289s 195.0 3463.8 rsa 2048 bits 0.034399s 0.001065s 29.1 939.3 rsa 4096 bits 0.254000s 0.004167s 3.9 240.0 local odroid u3: thresh@odroid:~$ openssl speed rsa Doing 512 bit private rsa's for 10s: 19334 512 bit private RSA's in 9.99s Doing 512 bit public rsa's for 10s: 204957 512 bit public RSA's in 9.97s Doing 1024 bit private rsa's for 10s: 3490 1024 bit private RSA's in 10.00s Doing 1024 bit public rsa's for 10s: 62453 1024 bit public RSA's in 10.00s Doing 2048 bit private rsa's for 10s: 516 2048 bit private RSA's in 10.00s Doing 2048 bit public rsa's for 10s: 17051 2048 bit public RSA's in 10.00s Doing 4096 bit private rsa's for 10s: 72 4096 bit private RSA's in 10.09s Doing 4096 bit public rsa's for 10s: 4434 4096 bit public RSA's in 10.00s OpenSSL 1.0.1f 6 Jan 2014 built on: Fri Jun 20 19:00:28 UTC 2014 options:bn(64,32) rc4(ptr,char) des(idx,cisc,16,long) aes(partial) blowfish(ptr) compiler: cc -fPIC -DOPENSSL_PIC -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DL_ENDIAN -DTERMIO -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -Wl,-Bsymbolic-functions -Wl,-z,relro -Wa,--noexecstack -Wall -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DAES_ASM -DGHASH_ASM sign verify sign/s verify/s rsa 512 bits 0.000517s 0.000049s 1935.3 20557.4 rsa 1024 bits 0.002865s 0.000160s 349.0 6245.3 rsa 2048 bits 0.019380s 0.000586s 51.6 1705.1 rsa 4096 bits 0.140139s 0.002255s 7.1 443.4 digitalocean cheapest vps: thresh@thre ~ $ openssl speed rsa Doing 512 bit private rsa's for 10s: 119305 512 bit private RSA's in 9.81s Doing 512 bit public rsa's for 10s: 1450435 512 bit public RSA's in 9.85s Doing 1024 bit private rsa's for 10s: 35347 1024 bit private RSA's in 9.85s Doing 1024 bit public rsa's for 10s: 541458 1024 bit public RSA's in 9.86s Doing 2048 bit private rsa's for 10s: 5259 2048 bit private RSA's in 9.84s Doing 2048 bit public rsa's for 10s: 161094 2048 bit public RSA's in 9.88s Doing 4096 bit private rsa's for 10s: 627 4096 bit private RSA's in 9.81s Doing 4096 bit public rsa's for 10s: 41353 4096 bit public RSA's in 9.75s OpenSSL 1.0.1e 11 Feb 2013 built on: Thu Mar 19 18:31:36 UTC 2015 options:bn(64,64) rc4(16x,int) des(idx,cisc,16,int) aes(partial) blowfish(idx) compiler: gcc -fPIC -DOPENSSL_PIC -DZLIB -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -m64 -DL_ENDIAN -DTERMIO -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -Wl,-z,relro -Wa,--noexecstack -Wall -DMD32_REG_T=int -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DMD5_ASM -DAES_ASM -DVPAES_ASM -DBSAES_ASM -DWHIRLPOOL_ASM -DGHASH_ASM sign verify sign/s verify/s rsa 512 bits 0.000082s 0.000007s 12161.6 147252.3 rsa 1024 bits 0.000279s 0.000018s 3588.5 54914.6 rsa 2048 bits 0.001871s 0.000061s 534.5 16305.1 rsa 4096 bits 0.015646s 0.000236s 63.9 4241.3 amazon t1.micro: [ec2-user@ip-10-71-147-165 ~]$ openssl speed rsa Doing 512 bit private rsa's for 10s: 85447 512 bit private RSA's in 9.48s Doing 512 bit public rsa's for 10s: 123882 512 bit public RSA's in 9.96s Doing 1024 bit private rsa's for 10s: 7720 1024 bit private RSA's in 9.98s Doing 1024 bit public rsa's for 10s: 187876 1024 bit public RSA's in 10.04s Doing 2048 bit private rsa's for 10s: 1268 2048 bit private RSA's in 9.99s Doing 2048 bit public rsa's for 10s: 67337 2048 bit public RSA's in 10.07s Doing 4096 bit private rsa's for 10s: 36 4096 bit private RSA's in 7.89s Doing 4096 bit public rsa's for 10s: 25180 4096 bit public RSA's in 9.85s OpenSSL 1.0.1g-fips 7 Apr 2014 built on: Wed Apr 9 21:51:31 UTC 2014 options:bn(64,64) md2(int) rc4(16x,int) des(idx,cisc,16,int) aes(partial) idea(int) blowfish(idx) compiler: gcc -fPIC -DOPENSSL_PIC -DZLIB -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DKRB5_MIT -m64 -DL_ENDIAN -DTERMIO -Wall -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -Wa,--noexecstack -DPURIFY -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DMD5_ASM -DAES_ASM -DVPAES_ASM -DBSAES_ASM -DWHIRLPOOL_ASM -DGHASH_ASM sign verify sign/s verify/s rsa 512 bits 0.000111s 0.000080s 9013.4 12438.0 rsa 1024 bits 0.001293s 0.000053s 773.5 18712.7 rsa 2048 bits 0.007879s 0.000150s 126.9 6686.9 rsa 4096 bits 0.219167s 0.000391s 4.6 2556.3