{
  "algorithm" : "ECDH",
  "generatorVersion" : "0.4.12",
  "notes" : {
    "AddSubChain" : "The private key has a special value. Implementations using addition subtraction chains for the point multiplication may get the point at infinity as an intermediate result. See CVE_2017_10176",
    "CVE_2017_10176" : "This test vector leads to an EC point multiplication where an intermediate result can be the point at infinity, if addition-subtraction chains are used to speed up the point multiplication.",
    "CompressedPoint" : "The point in the public key is compressed. Not every library supports points in compressed format."
  },
  "numberOfTests" : 81,
  "header" : [],
  "testGroups" : [
    {
      "curve" : "secp521r1",
      "encoding" : "ecpoint",
      "type" : "ECHDComp",
      "tests" : [
        {
          "tcId" : 1,
          "comment" : "normal case",
          "public" : "040064da3e94733db536a74a0d8a5cb2265a31c54a1da6529a198377fbd38575d9d79769ca2bdf2d4c972642926d444891a652e7f492337251adf1613cf3077999b5ce00e04ad19cf9fd4722b0c824c069f70c3c0e7ebc5288940dfa92422152ae4a4f79183ced375afb54db1409ddf338b85bb6dbfc5950163346bb63a90a70c5aba098f7",
          "private" : "1939982b529596ce77a94bc6efd03e92c21a849eb4f87b8f619d506efc9bb22e7c61640c90d598f795b64566dc6df43992ae34a1341d458574440a7371f611c7dcd",
          "shared" : "01f1e410f2c6262bce6879a3f46dfb7dd11d30eeee9ab49852102e1892201dd10f27266c2cf7cbccc7f6885099043dad80ff57f0df96acf283fb090de53df95f7d87",
          "result" : "valid",
          "flags" : []
        },
        {
          "tcId" : 2,
          "comment" : "compressed public key",
          "public" : "030064da3e94733db536a74a0d8a5cb2265a31c54a1da6529a198377fbd38575d9d79769ca2bdf2d4c972642926d444891a652e7f492337251adf1613cf3077999b5ce",
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          "shared" : "01f1e410f2c6262bce6879a3f46dfb7dd11d30eeee9ab49852102e1892201dd10f27266c2cf7cbccc7f6885099043dad80ff57f0df96acf283fb090de53df95f7d87",
          "result" : "acceptable",
          "flags" : [
            "CompressedPoint"
          ]
        },
        {
          "tcId" : 3,
          "comment" : "edge case for shared secret",
          "public" : "04014c643329691ba27459a40dfe7c4ce17b3ea14d0cd7aa47b01f1315404db51436fbbfe6de0842e0f7e1265f6ff3aca28750677d3370b2fb2a6ef497356f4b95811201051b14178639a09a41465c72d3743436ee1c191ff7388a40140b34d5317de5911ea03cdbb0329fdeb446695a3b92d437271a9f3c318b02dec4d473908158140e97",
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          "shared" : "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
          "result" : "valid",
          "flags" : []
        },
        {
          "tcId" : 4,
          "comment" : "edge case for shared secret",
          "public" : "040029cd32125c23a41af24fd4b729da0faacbc35516ef0ba59096602571693cd282e26d67e18ef4643d0f6f158d7370d3394ca9a8de7938032ac178c6fd34e3702b8d008649834e2b41be3a8b7510bfe570f4c67075943cd0cbb9d9e1d1da52618b5b96d6aec9b650daf1ca6624c13e5116302b9c79c8c4d3d351915d1e8e1ab6ad76098e",
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          "shared" : "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
          "result" : "valid",
          "flags" : []
        },
        {
          "tcId" : 5,
          "comment" : "edge case for shared secret",
          "public" : "040032c6f06ce6a15ea064464d35aa368d299c9a9e1e368f694aefb603876248f898f223ce0217bef37d61eb09b27c93187cf8e61ba7b14e3c9bee692b06ac6d95f836019fd19f8480e21c63211d48d45f96f6365cf55f958e1a0fe7ea6b6b9ff230a87b70bb1b14d3a5fb6669a91641c6acf4570c1d3a9e709913b7fe6b35ff81c394d6a7",
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          "shared" : "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002",
          "result" : "valid",
          "flags" : []
        },
        {
          "tcId" : 6,
          "comment" : "edge case for shared secret",
          "public" : "0401f7eb96e64b1a62daf9e0801bfd96a0b15b68e5f5cb3e90b434495a473907338e53098e1c2e493335d09c6aae6fdda0345b98aaed588f2abe82910713fb6c20252901396b17cf250bc018f4cead097e7e09863f14cf1239b065e57d884949eee141926f7e7c9f7f34cf0536368767bc0e1ab5142877293a4c722693a73fe14a5390af93",
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          "shared" : "000000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000",
          "result" : "valid",
          "flags" : []
        },
        {
          "tcId" : 7,
          "comment" : "edge case for shared secret",
          "public" : "04006ddf9b10965d5fc129e96f7a37667ccf66cc44384772906fedb21f9de4629e01aaa09ac7c9866112064bbc9bd58ebc123ab2fe19d8fed1a056d27bfef0630509c7001c441311ef20a16346332ea42d5c65788d68f6817b0267fcab11ea9c948ed108115dda8e823a380b601460742d3772d6424c67b240da24772ff0d2ccd9a1e0cea6",
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          "shared" : "000000ffffffffffffff00000000000000ffffffffffffff00000000000000ffffffffffffff00000000000000ffffffffffffff0000000000000100000000000000",
          "result" : "valid",
          "flags" : []
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        {
          "tcId" : 8,
          "comment" : "edge case for shared secret",
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          "shared" : "00003fffffff00000003fffffff00000003fffffff00000003fffffff00000003fffffff00000003fffffff00000003fffffff00000003fffffff00000003fffffff",
          "result" : "valid",
          "flags" : []
        },
        {
          "tcId" : 9,
          "comment" : "edge case for shared secret",
          "public" : "040029153cf062f88f303e5d6f9aac968bd901076d5994ea7f831833b1e69b67e9e9fe20cf9c5623e00e0b9e3592fca2a03324b5df7c93186aff697aca864600d44ecc002801a62e2f4106f34106da23dc93d50e3e975a1d47510021835290649b7a4125109f656b6b0b5bd00b24d84ea1ba4e1ed49e61c526fb1011005131caee7ee0501e",
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          "shared" : "010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
          "result" : "valid",
          "flags" : []
        },
        {
          "tcId" : 10,
          "comment" : "edge case for shared secret",
          "public" : "0400a61eb994e28722c59b3c6007dfdf8b37893f6350f461b26a00e1a45104314aae9989da87e4facb2c4ef721185b7d96d9a45a28a102756501a1acc5d329a21bbf73010e8d0e12f5a9a40e0d59c90ce73043d39730aeadd3788e31d7c2bb62a1166161994664afa658ce2e60a13f45f27f914307c8d6f8d4ed16ab041b8f69908a62782f",
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          "shared" : "010000003ffffff0000003ffffff0000003ffffff0000003ffffff0000003ffffff0000003ffffff0000003ffffff0000003ffffff0000003ffffff0000003ffffff",
          "result" : "valid",
          "flags" : []
        },
        {
          "tcId" : 11,
          "comment" : "edge case for shared secret",
          "public" : "04011dd497b30c73709906b164a9a79dc7f2a98c0148ed63016bb95243834fbcdf8eb74b0ff652d54f59f31aef51da6e8974d363655b1da138dc4de0f2a8d800f475ae0057bd4b84607400d863ffbf45a3cf58999ee24ba05e93eca7b0e4ae760eb1733559a45d15579d3370d716ffa3ec4bfdae418e32fb06138dfca213720a938577610e",
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          "shared" : "01ff00000000000000000000000000000000ffffffffffffffffffffffffffffffff0000000000000000000000000000000100000000000000000000000000000000",
          "result" : "valid",
          "flags" : []
        },
        {
          "tcId" : 12,
          "comment" : "edge case for shared secret",
          "public" : "0401283eb93fa369fe7012b647d21e0a97cf9950e5fbed819ef56158f20c8a9473a418eccbca4dc2b47f4cb6d322f917005859bf221e84ac9827cab82a801c627fb1ec0075c480cbafb352fcaf93baf23a1405fd81febe09729a908d1077e177dd8993d94b251a0d52652da3edb6fdf864e80cd51540e73d0b5107e3433576dcaa4e18db43",
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          "shared" : "01ff0000000000000000ffffffffffffffff0000000000000000ffffffffffffffff0000000000000000ffffffffffffffff0000000000000000ffffffffffffffff",
          "result" : "valid",
          "flags" : []
        },
        {
          "tcId" : 13,
          "comment" : "edge case for shared secret",
          "public" : "0400173beefe35ee868d497ff6601628f65ce18a1591f7e4a3a406622f3f508e2da68f101ed02febc38418c6ddfc26a5ec9848c42792463b1e945f9e167db34bdf2d660053070647aba7cd60eb295ab81a268a3903f393c5d28bbc5e022351c377cd84f02c19deb36442372cae1332e92f95ba60b6c852e0de0718e89d24e43cd479c9fb11",
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          "shared" : "01ff00000000ffffffff00000000ffffffff00000000ffffffff00000000ffffffff00000000ffffffff00000000ffffffff00000000ffffffff00000000ffffffff",
          "result" : "valid",
          "flags" : []
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        {
          "tcId" : 14,
          "comment" : "edge case for shared secret",
          "public" : "04009829cd5432687739ab6ae10af8ea73d2cb53b81ebb06b5961b7badc1676b3ef7b00454f7cde56774a01312d574a9193c1a5fe5336fbe62623ad9bf81143789f9f90012f955697ed578207197bf9aac3896521615dbacc8dc665d4f1715b08439f49c2aa6ed337023ffccc5075a85944936826db92f919737ca3afeadba1847084bdef7",
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          "shared" : "01ff0000ffff0000ffff0000ffff0000ffff0000ffff0000ffff0000ffff0000ffff0000ffff0000ffff0000ffff0000ffff0000ffff0000ffff0000ffff00010000",
          "result" : "valid",
          "flags" : []
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        {
          "tcId" : 15,
          "comment" : "edge case for shared secret",
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          "shared" : "01ffc000001ffffff8000003ffffff0000007fffffe000000ffffffc000001ffffff8000003ffffff0000007fffffe000000ffffffc000001ffffff8000004000001",
          "result" : "valid",
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        {
          "tcId" : 16,
          "comment" : "edge case for shared secret",
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          "result" : "valid",
          "flags" : []
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        {
          "tcId" : 17,
          "comment" : "edge case for shared secret",
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          "result" : "valid",
          "flags" : []
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        {
          "tcId" : 18,
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          "shared" : "01fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd",
          "result" : "valid",
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        {
          "tcId" : 19,
          "comment" : "edge case for shared secret",
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          "result" : "valid",
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        {
          "tcId" : 20,
          "comment" : "edge cases for ephemeral key",
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        {
          "tcId" : 21,
          "comment" : "edge cases for ephemeral key",
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        {
          "tcId" : 22,
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          "result" : "valid",
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        {
          "tcId" : 23,
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          "public" : "04000000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000005f880f50ec94bfac6658fa2fce05945c6a36b266407b6fbd5437a83e2f2f9b9c50a734872e48e70df65457f13e47d06c6b8b29f4735acf105ea63e051904d18aea",
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          "result" : "valid",
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        {
          "tcId" : 24,
          "comment" : "edge cases for ephemeral key",
          "public" : "04000000ffffffffffffff00000000000000ffffffffffffff00000000000000ffffffffffffff00000000000000ffffffffffffff000000000000010000000000000000f33ffc45da3eac1baab727ab8fd355cfa134c42047d55262651654fb50df7e9a5a75f179c8c86c4388213b5687dc43dfebb37f30128703c44ccd5c3284833b8717",
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          "result" : "valid",
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        {
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        {
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        {
          "tcId" : 27,
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          "result" : "valid",
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        {
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          "result" : "valid",
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        {
          "tcId" : 29,
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        {
          "tcId" : 30,
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        {
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        {
          "tcId" : 32,
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        {
          "tcId" : 33,
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          "result" : "valid",
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        {
          "tcId" : 34,
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          "result" : "valid",
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        {
          "tcId" : 35,
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          "result" : "valid",
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        {
          "tcId" : 36,
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          "result" : "valid",
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        {
          "tcId" : 37,
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          "private" : "3",
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        {
          "tcId" : 38,
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        {
          "tcId" : 39,
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          "result" : "valid",
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        {
          "tcId" : 40,
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          "result" : "valid",
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        {
          "tcId" : 41,
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          "result" : "valid",
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        {
          "tcId" : 42,
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          "result" : "valid",
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        {
          "tcId" : 43,
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          "result" : "valid",
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        {
          "tcId" : 44,
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          "result" : "valid",
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        {
          "tcId" : 45,
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          "result" : "valid",
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        {
          "tcId" : 46,
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          "result" : "valid",
          "flags" : [
            "AddSubChain"
          ]
        },
        {
          "tcId" : 47,
          "comment" : "edge case private key",
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          "result" : "valid",
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            "AddSubChain"
          ]
        },
        {
          "tcId" : 48,
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        {
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        {
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        {
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  ]
}