{"id":9402,"date":"2023-03-18T20:00:55","date_gmt":"2023-03-19T04:00:55","guid":{"rendered":"https:\/\/www.shop2world.com\/blog\/?p=9402"},"modified":"2023-03-18T20:14:10","modified_gmt":"2023-03-19T04:14:10","slug":"%eb%b8%94%eb%a1%9d%ec%b2%b4%ec%9d%b8%ec%9d%98-%eb%85%bc%ec%8a%a4nonce%ea%b0%92-number-used-once%ec%9d%98-%ec%a4%84%ec%9e%84%eb%a7%90","status":"publish","type":"post","link":"https:\/\/www.shop2world.com\/blog\/archives\/9402","title":{"rendered":"\ube14\ub85d\uccb4\uc778\uc758 \ub17c\uc2a4(Nonce : number used once) \uac12\uc774\ub780?"},"content":{"rendered":"\n

\ub17c\uc2a4(Nonce)\ub77c\ub294 \uc6a9\uc5b4\ub294 \uc601\uc5b4 “number used once”\uc758 \uc904\uc784\ub9d0 \uc785\ub2c8\ub2e4. \ube14\ub85d\uccb4\uc778\uc5d0\uc11c\ub294 \uc774\uc804 \ube14\ub85d\uc758 \ud574\uc2dc\uac12\uacfc \ub17c\uc2a4\ub97c \uc870\ud569\ud558\uc5ec \uc0c8\ub85c\uc6b4 \ube14\ub85d\uc758 \ud574\uc2dc\uac12\uc744 \uacc4\uc0b0\ud558\ub294 \uacfc\uc815\uc5d0\uc11c \ub17c\uc2a4\uac12\uc740 \ub2e8 \ud55c\ubc88\ub9cc \uc0ac\uc6a9\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub17c\uc2a4\uac12\uc758 \ub2e8 \ud55c\ubc88 \uc0ac\uc6a9\ub418\ub294 \ud2b9\uc131 \ub54c\ubb38\uc5d0 \uc774\ub97c “number used once”\ub77c\ub294 \uc601\uc5b4 \uc6a9\uc5b4\ub85c \ud45c\ud604\ud558\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

Nonce\ub294 \ub9e4\uc6b0 \uc27d\uac8c \uc124\uba85\ud558\uba74 “\ucc3e\uae30 \uc5b4\ub824\uc6b4 \uc22b\uc790”\ub77c\uace0 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub17c\uc2a4\ub294 \ube14\ub85d\uccb4\uc778 \ucc44\uad74\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud558\ub294\ub370, \uc774\ub294 \ube14\ub85d \ud574\uc2dc\uac12\uc744 \ub9cc\uc871\uc2dc\ud0a4\uae30 \uc704\ud574 \uc0ac\uc6a9\ub418\ub294 \uc784\uc758\uc758 \uc22b\uc790\uc785\ub2c8\ub2e4. \ube14\ub85d \ud574\uc2dc\uac12\uc744 \ub9cc\uc871\uc2dc\ud0a4\uae30 \uc704\ud574\uc11c\ub294 \ub9e4\uc6b0 \uc791\uc740 \ud655\ub960\ub85c \uc720\ud6a8\ud55c \ud574\uc2dc\uac12\uc774 \uc0dd\uc131\ub418\uae30 \ub54c\ubb38\uc5d0 \ub17c\uc2a4\ub294 \uacc4\uc18d\ud574\uc11c \ubcc0\uacbd\ub418\uba70 \uc774\ub97c \ud1b5\ud574 \uc720\ud6a8\ud55c \ube14\ub85d\uc744 \ucc3e\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc774\ub97c \uac1c\uc778\uc801\uc778 \ube44\uc720\ub85c \uc0dd\uac01\ud574\ubcf4\uba74, \ube44\ubc00\ubc88\ud638\ub97c \ucc3e\ub294 \uac83\uacfc \ube44\uc2b7\ud55c \uacfc\uc815\uc785\ub2c8\ub2e4. \ube44\ubc00\ubc88\ud638\ub97c \ucc3e\uae30 \uc704\ud574\uc11c\ub294 \uac00\ub2a5\ud55c \ubaa8\ub4e0 \uc870\ud569\uc744 \uc2dc\ub3c4\ud574\uc57c\ud558\uba70, \uc774\ub97c \ud1b5\ud574 \uc62c\ubc14\ub978 \ube44\ubc00\ubc88\ud638\ub97c \ucc3e\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ube44\uc2b7\ud558\uac8c, \ube14\ub85d\uccb4\uc778 \ucc44\uad74\uc5d0\uc11c\ub3c4 \ubaa8\ub4e0 \uac00\ub2a5\ud55c \uc870\ud569\uc744 \uc2dc\ub3c4\ud574 \ube14\ub85d \ud574\uc2dc\uac12\uc744 \ub9cc\uc871\uc2dc\ud0a4\uae30 \uc704\ud574 \ub17c\uc2a4\ub97c \ubcc0\uacbd\ud558\uba70 \uacc4\uc18d\ud574\uc11c \uc720\ud6a8\ud55c \ube14\ub85d\uc744 \ucc3e\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub17c\uc2a4\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 32\ube44\ud2b8 \uc815\uc218 \uac12\uc73c\ub85c \ud45c\ud604\ub429\ub2c8\ub2e4. \uc774 \uc815\uc218 \uac12\uc744 \uc774\uc6a9\ud558\uc5ec \ube14\ub85d\uc758 \ud574\uc2dc \uac12\uc744 \ucc3e\uc2b5\ub2c8\ub2e4. \uac00\uc7a5 \uac04\ub2e8\ud558\uac8c \ube60\ub974\uac8c \uacc4\uc0b0\ud560 \uc218 \uc788\ub294 \ucf54\ub4dc\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. \uc870\uae08\ub9cc \ub09c\uc774\ub3c4\ub97c \ub192\uc5ec\ub3c4 \uc2dc\uac04\uc774 \uaf64 \uac78\ub9ac\uae30 \ub54c\ubb38\uc5d0 \uc5c4\uccad\ub098\uac8c \uac04\ub2e8\ud558\uac8c \ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc2e4\ud589\ud558\uae30<\/a>
<\/p>\n\n\n

import hashlib\n\n# \uc774\uc804 \ube14\ub85d\uc758 \ud574\uc2dc \uac12\nprevious_block_hash = \"0000000000000000000000000000000000000000000000000000000000000000\"\n\n# \ube14\ub85d \ub370\uc774\ud130\nblock_data = \"Hello, world!\"\n\n# \ub17c\uc2a4 \uac12 \ubc94\uc704\nnonce_range = range(100000)\n\n# \uc774\uc804 \ube14\ub85d\uc758 \ud574\uc2dc \uac12\uacfc \ube14\ub85d \ub370\uc774\ud130\ub97c \ud569\uccd0\uc11c \ubb38\uc790\uc5f4\ub85c \ub9cc\ub4ed\ub2c8\ub2e4.\nblock = previous_block_hash + block_data\n\n# \ube14\ub85d \ud574\uc2dc \uac12\uc774 \"0000\"\uc73c\ub85c \uc2dc\uc791\ud558\ub294 \ub17c\uc2a4 \uac12\uc744 \ucc3e\uc2b5\ub2c8\ub2e4.\nfor nonce in nonce_range:\n    # \ub17c\uc2a4 \uac12\uc744 \ube14\ub85d \ubb38\uc790\uc5f4\uc5d0 \ucd94\uac00\ud569\ub2c8\ub2e4.\n    block_with_nonce = block + str(nonce)\n    # SHA-256 \ud574\uc2dc \ud568\uc218\ub97c \uc774\uc6a9\ud558\uc5ec \ube14\ub85d \ud574\uc2dc \uac12\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4.\n    block_hash = hashlib.sha256(block_with_nonce.encode()).hexdigest()\n    if block_hash[:4] == \"0000\":\n        print(f\"Block hash found: {block_hash}\")\n        print(f\"Nonce value: {nonce}\")\n        break\n<\/pre>\n\n\n
\uc774 \ucf54\ub4dc\ub294 \uc774\uc804 \ube14\ub85d\uc758 \ud574\uc2dc \uac12\uacfc \ube14\ub85d \ub370\uc774\ud130\ub97c \uc774\uc6a9\ud558\uc5ec \ube14\ub85d \ubb38\uc790\uc5f4\uc744 \ub9cc\ub4e4\uace0, \uc774 \ubb38\uc790\uc5f4\uc5d0 \ub17c\uc2a4 \uac12\uc744 \ucd94\uac00\ud558\uc5ec SHA-256 \ud574\uc2dc \ud568\uc218\ub97c \uc774\uc6a9\ud558\uc5ec \ube14\ub85d \ud574\uc2dc \uac12\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4. \ube14\ub85d \ud574\uc2dc \uac12\uc774 “0000”\uc73c\ub85c \uc2dc\uc791\ud558\ub294 \ub17c\uc2a4 \uac12\uc744 \ucc3e\uc744 \ub54c\uae4c\uc9c0 \ub17c\uc2a4 \uac12\uc744 \uc99d\uac00\uc2dc\ud0a4\uba70 \ubc18\ubcf5\ud569\ub2c8\ub2e4. \ub17c\uc2a4 \uac12\uc744 \ucc3e\uc73c\uba74 \ube14\ub85d \ud574\uc2dc \uac12\uc744 \ucd9c\ub825\ud558\uace0 \ube14\ub85d\uc758 \ub17c\uc2a4 \uac12\uc744 \ucd9c\ub825\ud569\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
\ub17c\uc2a4(Nonce)\ub77c\ub294 \uc6a9\uc5b4\ub294 \uc601\uc5b4 “number used once”\uc758 \uc904\uc784\ub9d0 \uc785\ub2c8\ub2e4. \ube14\ub85d\uccb4\uc778\uc5d0\uc11c\ub294 \uc774\uc804 \ube14\ub85d\uc758 \ud574\uc2dc\uac12\uacfc \ub17c\uc2a4\ub97c \uc870\ud569\ud558\uc5ec \uc0c8\ub85c\uc6b4 \ube14\ub85d\uc758 \ud574\uc2dc\uac12\uc744 \uacc4\uc0b0\ud558\ub294 \uacfc\uc815\uc5d0\uc11c \ub17c\uc2a4\uac12\uc740 \ub2e8 \ud55c\ubc88\ub9cc \uc0ac\uc6a9\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub17c\uc2a4\uac12\uc758 \ub2e8 \ud55c\ubc88 \uc0ac\uc6a9\ub418\ub294 \ud2b9\uc131 \ub54c\ubb38\uc5d0 \uc774\ub97c “number used once”\ub77c\ub294 \uc601\uc5b4 \uc6a9\uc5b4\ub85c \ud45c\ud604\ud558\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4. Nonce\ub294 \ub9e4\uc6b0 \uc27d\uac8c \uc124\uba85\ud558\uba74 “\ucc3e\uae30 \uc5b4\ub824\uc6b4 \uc22b\uc790”\ub77c\uace0 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub17c\uc2a4\ub294 \ube14\ub85d\uccb4\uc778 \ucc44\uad74\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud558\ub294\ub370, \uc774\ub294 \ube14\ub85d \ud574\uc2dc\uac12\uc744 \ub9cc\uc871\uc2dc\ud0a4\uae30 \uc704\ud574 \uc0ac\uc6a9\ub418\ub294 \uc784\uc758\uc758 \uc22b\uc790\uc785\ub2c8\ub2e4. \ube14\ub85d \ud574\uc2dc\uac12\uc744 \ub9cc\uc871\uc2dc\ud0a4\uae30 \uc704\ud574\uc11c\ub294 \ub9e4\uc6b0 \uc791\uc740 \ud655\ub960\ub85c \uc720\ud6a8\ud55c \ud574\uc2dc\uac12\uc774 \uc0dd\uc131\ub418\uae30 \ub54c\ubb38\uc5d0 \ub17c\uc2a4\ub294 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[716],"tags":[725],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.shop2world.com\/blog\/wp-json\/wp\/v2\/posts\/9402"}],"collection":[{"href":"https:\/\/www.shop2world.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shop2world.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shop2world.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shop2world.com\/blog\/wp-json\/wp\/v2\/comments?post=9402"}],"version-history":[{"count":7,"href":"https:\/\/www.shop2world.com\/blog\/wp-json\/wp\/v2\/posts\/9402\/revisions"}],"predecessor-version":[{"id":9411,"href":"https:\/\/www.shop2world.com\/blog\/wp-json\/wp\/v2\/posts\/9402\/revisions\/9411"}],"wp:attachment":[{"href":"https:\/\/www.shop2world.com\/blog\/wp-json\/wp\/v2\/media?parent=9402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shop2world.com\/blog\/wp-json\/wp\/v2\/categories?post=9402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shop2world.com\/blog\/wp-json\/wp\/v2\/tags?post=9402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}