les, light, params: update light client CHTs

1 files changed, 39 insertions, 0 deletions

diff --git a/params/config.go b/params/config.go
index c4dfa8b4b..b0f6b7df1 100644
--- a/params/config.go
+++ b/params/config.go
@@ -46,6 +46,15 @@ var (
 		Ethash:              new(EthashConfig),
 	}
 
+	// MainnetTrustedCheckpoint contains the light client trusted checkpoint for the main network.
+	MainnetTrustedCheckpoint = &TrustedCheckpoint{
+		Name:         "mainnet",
+		SectionIndex: 193,
+		SectionHead:  common.HexToHash("0xc2d574295ecedc4d58530ae24c31a5a98be7d2b3327fba0dd0f4ed3913828a55"),
+		CHTRoot:      common.HexToHash("0x5d1027dfae688c77376e842679ceada87fd94738feb9b32ef165473bfbbb317b"),
+		BloomRoot:    common.HexToHash("0xd38be1a06aabd568e10957fee4fcc523bc64996bcf31bae3f55f86e0a583919f"),
+	}
+
 	// TestnetChainConfig contains the chain parameters to run a node on the Ropsten test network.
 	TestnetChainConfig = &ChainConfig{
 		ChainID:             big.NewInt(3),
@@ -61,6 +70,15 @@ var (
 		Ethash:              new(EthashConfig),
 	}
 
+	// TestnetTrustedCheckpoint contains the light client trusted checkpoint for the Ropsten test network.
+	TestnetTrustedCheckpoint = &TrustedCheckpoint{
+		Name:         "testnet",
+		SectionIndex: 123,
+		SectionHead:  common.HexToHash("0xa372a53decb68ce453da12bea1c8ee7b568b276aa2aab94d9060aa7c81fc3dee"),
+		CHTRoot:      common.HexToHash("0x6b02e7fada79cd2a80d4b3623df9c44384d6647fc127462e1c188ccd09ece87b"),
+		BloomRoot:    common.HexToHash("0xf2d27490914968279d6377d42868928632573e823b5d1d4a944cba6009e16259"),
+	}
+
 	// RinkebyChainConfig contains the chain parameters to run a node on the Rinkeby test network.
 	RinkebyChainConfig = &ChainConfig{
 		ChainID:             big.NewInt(4),
@@ -79,6 +97,15 @@ var (
 		},
 	}
 
+	// RinkebyTrustedCheckpoint contains the light client trusted checkpoint for the Rinkeby test network.
+	RinkebyTrustedCheckpoint = &TrustedCheckpoint{
+		Name:         "rinkeby",
+		SectionIndex: 91,
+		SectionHead:  common.HexToHash("0x435b7b2d8a7922f3b9a522f2fb02730e95e0e1782f0f5443894d5415bba37154"),
+		CHTRoot:      common.HexToHash("0x0664bf7ecccfb6775c4eca6f0f264fb5282a22754a2135a1ac4bff2ef02898dd"),
+		BloomRoot:    common.HexToHash("0x2a64df2400c3a2cb6400639bb6ed29389abdb4d93e2e525aa7c21f38767cd96f"),
+	}
+
 	// AllEthashProtocolChanges contains every protocol change (EIPs) introduced
 	// and accepted by the Ethereum core developers into the Ethash consensus.
 	//
@@ -97,6 +124,18 @@ var (
 	TestRules       = TestChainConfig.Rules(new(big.Int))
 )
 
+// TrustedCheckpoint represents a set of post-processed trie roots (CHT and
+// BloomTrie) associated with the appropriate section index and head hash. It is
+// used to start light syncing from this checkpoint and avoid downloading the
+// entire header chain while still being able to securely access old headers/logs.
+type TrustedCheckpoint struct {
+	Name         string      `json:"-"`
+	SectionIndex uint64      `json:"sectionIndex"`
+	SectionHead  common.Hash `json:"sectionHead"`
+	CHTRoot      common.Hash `json:"chtRoot"`
+	BloomRoot    common.Hash `json:"bloomRoot"`
+}
+
 // ChainConfig is the core config which determines the blockchain settings.
 //
 // ChainConfig is stored in the database on a per block basis. This means