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Default IPSec proposals for common client OSes
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| Default proposals offered for IKEv2 VPNs on common OSes as of 26/03/2018 or thereabouts | |
| Mac OS X 10.13.3: | |
| IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_2048, | |
| IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/ECP_256, | |
| IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_1536, | |
| IKE:AES_CBC_128/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, | |
| IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 | |
| ESP:AES_CBC_256/HMAC_SHA2_256_128/NO_EXT_SEQ, | |
| ESP:AES_CBC_256/HMAC_SHA2_256_128/NO_EXT_SEQ, | |
| ESP:AES_CBC_256/HMAC_SHA2_256_128/NO_EXT_SEQ, | |
| ESP:AES_CBC_128/HMAC_SHA1_96/NO_EXT_SEQ, | |
| ESP:3DES_CBC/HMAC_SHA1_96/NO_EXT_SEQ | |
| iOS 11.2.6 (same as OS X - not too surprising): | |
| IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_2048, | |
| IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/ECP_256, | |
| IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_1536, | |
| IKE:AES_CBC_128/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, | |
| IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 | |
| ESP:AES_CBC_256/HMAC_SHA2_256_128/NO_EXT_SEQ, | |
| ESP:AES_CBC_256/HMAC_SHA2_256_128/NO_EXT_SEQ, | |
| ESP:AES_CBC_256/HMAC_SHA2_256_128/NO_EXT_SEQ, | |
| ESP:AES_CBC_128/HMAC_SHA1_96/NO_EXT_SEQ, | |
| ESP:3DES_CBC/HMAC_SHA1_96/NO_EXT_SEQ | |
| Windows 10 Pro: | |
| IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, | |
| IKE:3DES_CBC/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_1024, | |
| IKE:3DES_CBC/HMAC_SHA2_384_192/PRF_HMAC_SHA2_384/MODP_1024, | |
| IKE:AES_CBC_128/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, | |
| IKE:AES_CBC_128/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_1024, | |
| IKE:AES_CBC_128/HMAC_SHA2_384_192/PRF_HMAC_SHA2_384/MODP_1024, | |
| IKE:AES_CBC_192/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, | |
| IKE:AES_CBC_192/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_1024, | |
| IKE:AES_CBC_192/HMAC_SHA2_384_192/PRF_HMAC_SHA2_384/MODP_1024, | |
| IKE:AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, | |
| IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_1024, | |
| IKE:AES_CBC_256/HMAC_SHA2_384_192/PRF_HMAC_SHA2_384/MODP_1024, | |
| IKE:AES_GCM_16_128/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, | |
| IKE:AES_GCM_16_128/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_1024, | |
| IKE:AES_GCM_16_128/HMAC_SHA2_384_192/PRF_HMAC_SHA2_384/MODP_1024, | |
| IKE:AES_GCM_16_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, | |
| IKE:AES_GCM_16_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_1024, | |
| IKE:AES_GCM_16_256/HMAC_SHA2_384_192/PRF_HMAC_SHA2_384/MODP_1024 | |
| ESP:AES_CBC_256/HMAC_SHA1_96/NO_EXT_SEQ, | |
| ESP:AES_CBC_128/HMAC_SHA1_96/NO_EXT_SEQ, | |
| ESP:3DES_CBC/HMAC_SHA1_96/NO_EXT_SEQ, | |
| ESP:DES_CBC/HMAC_SHA1_96/NO_EXT_SEQ, | |
| ESP:NULL/HMAC_SHA1_96/NO_EXT_SEQ | |
| It's 2018 and Microsoft still default to only presenting modp1024. The OS supports ECP256, as well as MODP2048/3072/4096/6144/8192 - but no, you have to screw with GPOs or at least Local Security Policy to enable them. | |
| What the shit, Microsoft? |
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