{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "EBSDirectReadAPIPermissions",
      "Effect": "Allow",
      "Action": [
        "ebs:ListSnapshotBlocks",
        "ebs:ListChangedBlocks",
        "ebs:GetSnapshotBlock"
      ],
      "Resource": "arn:aws:ec2:*::snapshot/*",
      "Condition": {
        "Null": {
          "aws:ResourceTag/aws:backup:source-resource": "false"
        },
        "StringLike": {
          "aws:ResourceTag/aws:backup:source-resource": "*"
        }
      }
    },
    {
      "Sid": "CreateGrantForEncryptedVolumeCreation",
      "Effect": "Allow",
      "Action": "kms:CreateGrant",
      "Resource": "arn:aws:kms:*:*:key/*",
      "Condition": {
        "StringLike": {
          "kms:EncryptionContext:aws:guardduty:id": "snap-*",
          "kms:ViaService": [
            "guardduty.*.amazonaws.com",
            "backup.*.amazonaws.com"
          ]
        },
        "ForAllValues:StringEquals": {
          "kms:GrantOperations": [
            "Decrypt",
            "CreateGrant",
            "GenerateDataKeyWithoutPlaintext",
            "ReEncryptFrom",
            "ReEncryptTo",
            "RetireGrant",
            "DescribeKey"
          ]
        },
        "Null": {
          "kms:GrantOperations": "false"
        }
      }
    },
    {
      "Sid": "CreateGrantForReEncryptAndEBSDirect",
      "Effect": "Allow",
      "Action": "kms:CreateGrant",
      "Resource": "arn:aws:kms:*:*:key/*",
      "Condition": {
        "StringLike": {
          "kms:EncryptionContext:aws:ebs:id": "snap-*",
          "kms:ViaService": [
            "guardduty.*.amazonaws.com",
            "backup.*.amazonaws.com"
          ]
        },
        "ForAllValues:StringEquals": {
          "kms:GrantOperations": [
            "Decrypt",
            "ReEncryptFrom",
            "ReEncryptTo",
            "RetireGrant",
            "DescribeKey"
          ]
        },
        "Null": {
          "kms:GrantOperations": "false"
        }
      }
    },
    {
      "Sid": "DescribeKeyPermissions",
      "Effect": "Allow",
      "Action": "kms:DescribeKey",
      "Resource": "arn:aws:kms:*:*:key/*"
    },
    {
      "Sid": "EC2ReadAPIPermissions",
      "Effect": "Allow",
      "Action": [
        "ec2:DescribeImages",
        "ec2:DescribeSnapshots"
      ],
      "Resource": "*"
    },
    {
      "Sid": "ShareSnapshotPermissions",
      "Effect": "Allow",
      "Action": [
        "ec2:ModifySnapshotAttribute"
      ],
      "Resource": "arn:aws:ec2:*:*:snapshot/*",
      "Condition": {
        "Null": {
          "aws:ResourceTag/aws:backup:source-resource": "false"
        },
        "StringLike": {
          "aws:ResourceTag/aws:backup:source-resource": "*"
        }
      }
    },
    {
      "Sid": "ShareSnapshotKMSPermissions",
      "Effect": "Allow",
      "Action": [
        "kms:ReEncryptTo",
        "kms:ReEncryptFrom"
      ],
      "Resource": "arn:aws:kms:*:*:key/*",
      "Condition": {
        "StringLike": {
          "kms:EncryptionContext:aws:ebs:id": [
            "vol-*",
            "snap-*"
          ],
          "kms:ViaService": "ec2.*.amazonaws.com"
        }
      }
    },
    {
      "Sid": "CreateBackupAccessPointPermissions",
      "Effect": "Allow",
      "Action": [
        "backup:CreateBackupAccessPoint"
      ],
      "Resource": "arn:aws:backup:*:*:recovery-point:*"
    },
    {
      "Sid": "ReadAndDeleteBackupAccessPointPermissions",
      "Effect": "Allow",
      "Action": [
        "backup:DescribeBackupAccessPoint",
        "backup:DeleteBackupAccessPoint"
      ],
      "Resource": "*"
    },
    {
      "Sid": "BackupRecoveryPointApiPermissions",
      "Effect": "Allow",
      "Action": [
        "backup:DescribeRecoveryPoint"
      ],
      "Resource": "arn:aws:backup:*:*:recovery-point:*"
    },
    {
      "Sid": "DecryptKMSEncryptedDataByAWSBackup",
      "Effect": "Allow",
      "Action": [
        "kms:Decrypt"
      ],
      "Resource": "arn:aws:kms:*:*:key/*",
      "Condition": {
        "StringLike": {
          "kms:EncryptionContext:aws:backup:backup-vault": "*",
          "kms:ViaService": "backup.*.amazonaws.com"
        }
      }
    }
  ]
}