{"id":733,"date":"2018-11-12T20:39:09","date_gmt":"2018-11-12T20:39:09","guid":{"rendered":"http:\/\/alysidakoinopoihsewn.blogchains.org\/?p=733"},"modified":"2018-12-18T06:14:54","modified_gmt":"2018-12-18T06:14:54","slug":"%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1","status":"publish","type":"post","link":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/","title":{"rendered":"\u039a\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc \u0391\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1"},"content":{"rendered":"
\n
\n\t

Τί είναι λοιπόν το κρυπτογραφικό αποτύπωμα;<\/p>\n

Το κρυπτογραφικό αποτύπωμα είναι μια σταθερή<\/strong> σε μέγεθος, ποσότητα δεδομένων. Όταν δείτε κάτι που να μοιάζει με αυτό--->f4150c53079b91d83cf75aaa2aa9ed158aa12b4debe567edcfeb9ff0929aba3c, τότε μάλλον έχετε μπροστά σας ένα κρυπτογραφικό αποτύπωμα. Στην προκειμένη περίπτωση, σας διαβεβαιώνω ότι σίγουρα έχετε μπροστά σας ένα κρυπτογραφικό αποτύπωμα. Μόλις πρίν λίγο επισκέφτηκα έναν ιστότοπο (https:\/\/anders.com\/blockchain\/hash.html<\/a>) που παρέχει δωρεάν την υπηρεσία παραγωγής κρυπτογραφικών αποτυπωμάτων και εισήγαγα στο κατάλληλο πεδίο (πεδίο εισαγωγής\/input field), κάτι δικό μου. Μπορεί να έβαλα μία λέξη, ένα κείμενο ολόκληρο, μια σειρά από δεδομένα που επεξεργασμένα κατάλληλα από ένα πρόγραμμα, σχηματίζουν μια φωτογραφία ή μια ολόκληρη ταινία, οποιοδήποτε σύνολο δεδομένων τέλος πάντων, οποιονδήποτε διαστάσεων. Και πάτησα το κουμπί "εισαγωγή" ("enter"). Και τότε η συνάρτηση (function, λειτουργία, αυτολεξεί) κατατεμαχισμού (hash function) λειτούργησε<\/strong> πάνω σε αυτό το κάτι δικό μου και εξήγαγε το κρυπτογραφικό του,<\/strong> αποτύπωμα.<\/p>\n

Όπως το αποτύπωμα κάθε ανθρώπου είναι μοναδικό για τον άνθρωπο αυτόν, έτσι και κάθε σύνολο δεδομένων στον κόσμο αυτόν, έχει το δικό του κρυπτογραφικό αποτύπωμα. Μοναδικό;, θα ρωτήσετε.  Μήπως υπάρχουν δύο διαφορετικά σύνολα με το ίδιο αποτύπωμα; Μήπως υπάρχουν δύο άνθρωποι, διαφορετικοί, με το ίδιο αποτύπωμα; Όχι απίθανο, είναι η απάντηση. Πόσοι συνδυασμοί βγαίνουν από ένα αποτύπωμα σαν του παραδείγματος; H απάντηση είναι "τόσοι πολλοί που η ελπίδα να βρεθούν δύο τέτοιοι άνθρωποι, συγνώμη, κρυπτογραφικά αποτυπώματα ήθελα να πω, είναι έξω από  τα όρια τα ανθρώπινα. Και με το "ανθρώπινα", συμπεριλαμβάνω και τα έργα τα ανθρώπινα, όπως ένας υπολογιστής για παράδειγμα.<\/p>\n

Και σαν να μην έφτανε αυτό, το κρυπτογραφικό αποτύπωμα έχει και την παρακάτω ακόμα ιδιότητα. Ενώ μπορούμε κάλλιστα να ελέγξουμε εάν ένα αποτύπωμα ανήκει σε κάποιον άνθρωπο (απλά συγκρίνοντάς το με το δαχτυλάκι του ανθρώπου αυτού), είναι απέλπιδο να προσπαθήσουμε να συμπεράνουμε έναν άνθρωπο από το δακτυλικό του αποτύπωμα και μόνο. Υπολογιστικά, είναι σχεδόν απίθανο να εξαγάγουμε το σύνολο δεδομένων που εισηγμένα στο πεδίο εισαγωγής στην συνάρτηση κατακερματισμού, μας έδωσαν το κρυπτογραφικό αυτό, αποτύπωμα. Με άλλα λόγια δεν θα μάθετε ποτέ τι έγραψα και μου έβγαλε το αποτύπωμα που σας παρουσίασα.<\/p>\n

 <\/p>\n

 <\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

Τί είναι λοιπόν το κρυπτογραφικό αποτύπωμα; Το κρυπτογραφικό αποτύπωμα είναι μια σταθερή σε μέγεθος, ποσότητα δεδομένων. Όταν δείτε κάτι που να μοιάζει με αυτό—>f4150c53079b91d83cf75aaa2aa9ed158aa12b4debe567edcfeb9ff0929aba3c, τότε μάλλον έχετε μπροστά σας ένα κρυπτογραφικό αποτύπωμα. Στην προκειμένη…<\/p>\n","protected":false},"author":1,"featured_media":777,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_classifai_error":"","footnotes":"","_wordproof_timestamp":false},"categories":[9,23],"tags":[],"watson-category":[],"watson-keyword":[],"watson-concept":[],"watson-entity":[],"yoast_head":"\u039a\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc \u0391\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1 - \u0391\u03bb\u03c5\u03c3\u03af\u03b4\u03b1 \u039a\u03bf\u03b9\u03bd\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c9\u03bd<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/2018\/11\/12\/\u03ba\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc-\u03b1\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1\/\" \/>\n<meta property=\"og:locale\" content=\"el_GR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u039a\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc \u0391\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1 - \u0391\u03bb\u03c5\u03c3\u03af\u03b4\u03b1 \u039a\u03bf\u03b9\u03bd\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c9\u03bd\" \/>\n<meta property=\"og:description\" content=\"Τί είναι λοιπόν το κρυπτογραφικό αποτύπωμα; Το κρυπτογραφικό αποτύπωμα είναι μια σταθερή σε μέγεθος, ποσότητα δεδομένων. Όταν δείτε κάτι που να μοιάζει με αυτό--->f4150c53079b91d83cf75aaa2aa9ed158aa12b4debe567edcfeb9ff0929aba3c, τότε μάλλον έχετε μπροστά σας ένα κρυπτογραφικό αποτύπωμα. Στην προκειμένη...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/\u03ba\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc-\u03b1\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1\/\" \/>\n<meta property=\"og:site_name\" content=\"\u0391\u03bb\u03c5\u03c3\u03af\u03b4\u03b1 \u039a\u03bf\u03b9\u03bd\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c9\u03bd\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/BlockchainGreece\" \/>\n<meta property=\"article:published_time\" content=\"2018-11-12T20:39:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-12-18T06:14:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2018\/11\/fingerprintwedding-ring-with-love.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1073\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"fragagou\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@BlockchainGreek\" \/>\n<meta name=\"twitter:site\" content=\"@BlockchainGreek\" \/>\n<meta name=\"twitter:label1\" content=\"\u03a3\u03c5\u03bd\u03c4\u03ac\u03c7\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc\" \/>\n\t<meta name=\"twitter:data1\" content=\"fragagou\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/\"},\"author\":{\"name\":\"fragagou\",\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#\/schema\/person\/cc944a4852e1c3ecc66808a9c4298cc1\"},\"headline\":\"\u039a\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc \u0391\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1\",\"datePublished\":\"2018-11-12T20:39:09+00:00\",\"dateModified\":\"2018-12-18T06:14:54+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/\"},\"wordCount\":36,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#organization\"},\"image\":{\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2018\/11\/fingerprintwedding-ring-with-love.jpg\",\"articleSection\":[\"GenesisBlogchain\",\"Knowledge Base\"],\"inLanguage\":\"el\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/\",\"url\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/\",\"name\":\"\u039a\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc \u0391\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1 - \u0391\u03bb\u03c5\u03c3\u03af\u03b4\u03b1 \u039a\u03bf\u03b9\u03bd\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c9\u03bd\",\"isPartOf\":{\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2018\/11\/fingerprintwedding-ring-with-love.jpg\",\"datePublished\":\"2018-11-12T20:39:09+00:00\",\"dateModified\":\"2018-12-18T06:14:54+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#breadcrumb\"},\"inLanguage\":\"el\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"el\",\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#primaryimage\",\"url\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2018\/11\/fingerprintwedding-ring-with-love.jpg\",\"contentUrl\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2018\/11\/fingerprintwedding-ring-with-love.jpg\",\"width\":1920,\"height\":1073},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u0391\u03c1\u03c7\u03b9\u03ba\u03ae\",\"item\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cryptographic Hash\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#website\",\"url\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/\",\"name\":\"alysidakoinopoihsewn\",\"description\":\"Sapere aude\",\"publisher\":{\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"el\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#organization\",\"name\":\"Blogchains Organization\",\"url\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"el\",\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2020\/04\/Untitled-1.png\",\"contentUrl\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2020\/04\/Untitled-1.png\",\"width\":1112,\"height\":352,\"caption\":\"Blogchains Organization\"},\"image\":{\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/BlockchainGreece\",\"https:\/\/x.com\/BlockchainGreek\",\"https:\/\/www.instagram.com\/blockchaingreece\/\",\"https:\/\/www.youtube.com\/channel\/UCsk4qga_4aI4gOSEVUlGo6A?view_as=subscriber\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#\/schema\/person\/cc944a4852e1c3ecc66808a9c4298cc1\",\"name\":\"fragagou\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"el\",\"@id\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/4dd2afb72297bf5b4ee0572193bb18b1?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/4dd2afb72297bf5b4ee0572193bb18b1?s=96&d=mm&r=g\",\"caption\":\"fragagou\"},\"sameAs\":[\"https:\/\/blogchains.org\"],\"url\":\"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/author\/fragagou\/\"}]}<\/script>","yoast_head_json":{"title":"\u039a\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc \u0391\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1 - \u0391\u03bb\u03c5\u03c3\u03af\u03b4\u03b1 \u039a\u03bf\u03b9\u03bd\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c9\u03bd","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/2018\/11\/12\/\u03ba\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc-\u03b1\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1\/","og_locale":"el_GR","og_type":"article","og_title":"\u039a\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc \u0391\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1 - \u0391\u03bb\u03c5\u03c3\u03af\u03b4\u03b1 \u039a\u03bf\u03b9\u03bd\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c9\u03bd","og_description":"Τί είναι λοιπόν το κρυπτογραφικό αποτύπωμα; Το κρυπτογραφικό αποτύπωμα είναι μια σταθερή σε μέγεθος, ποσότητα δεδομένων. Όταν δείτε κάτι που να μοιάζει με αυτό--->f4150c53079b91d83cf75aaa2aa9ed158aa12b4debe567edcfeb9ff0929aba3c, τότε μάλλον έχετε μπροστά σας ένα κρυπτογραφικό αποτύπωμα. Στην προκειμένη...","og_url":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/\u03ba\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc-\u03b1\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1\/","og_site_name":"\u0391\u03bb\u03c5\u03c3\u03af\u03b4\u03b1 \u039a\u03bf\u03b9\u03bd\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c9\u03bd","article_publisher":"https:\/\/www.facebook.com\/BlockchainGreece","article_published_time":"2018-11-12T20:39:09+00:00","article_modified_time":"2018-12-18T06:14:54+00:00","og_image":[{"width":1920,"height":1073,"url":"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2018\/11\/fingerprintwedding-ring-with-love.jpg","type":"image\/jpeg"}],"author":"fragagou","twitter_card":"summary_large_image","twitter_creator":"@BlockchainGreek","twitter_site":"@BlockchainGreek","twitter_misc":{"\u03a3\u03c5\u03bd\u03c4\u03ac\u03c7\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc":"fragagou"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#article","isPartOf":{"@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/"},"author":{"name":"fragagou","@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#\/schema\/person\/cc944a4852e1c3ecc66808a9c4298cc1"},"headline":"\u039a\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc \u0391\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1","datePublished":"2018-11-12T20:39:09+00:00","dateModified":"2018-12-18T06:14:54+00:00","mainEntityOfPage":{"@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/"},"wordCount":36,"commentCount":0,"publisher":{"@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#organization"},"image":{"@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#primaryimage"},"thumbnailUrl":"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2018\/11\/fingerprintwedding-ring-with-love.jpg","articleSection":["GenesisBlogchain","Knowledge Base"],"inLanguage":"el","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/","url":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/","name":"\u039a\u03c1\u03c5\u03c0\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03cc \u0391\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1 - \u0391\u03bb\u03c5\u03c3\u03af\u03b4\u03b1 \u039a\u03bf\u03b9\u03bd\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c9\u03bd","isPartOf":{"@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#website"},"primaryImageOfPage":{"@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#primaryimage"},"image":{"@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#primaryimage"},"thumbnailUrl":"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2018\/11\/fingerprintwedding-ring-with-love.jpg","datePublished":"2018-11-12T20:39:09+00:00","dateModified":"2018-12-18T06:14:54+00:00","breadcrumb":{"@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#breadcrumb"},"inLanguage":"el","potentialAction":[{"@type":"ReadAction","target":["https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/"]}]},{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#primaryimage","url":"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2018\/11\/fingerprintwedding-ring-with-love.jpg","contentUrl":"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2018\/11\/fingerprintwedding-ring-with-love.jpg","width":1920,"height":1073},{"@type":"BreadcrumbList","@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/2018\/11\/12\/%ce%ba%cf%81%cf%85%cf%80%cf%84%ce%bf%ce%b3%cf%81%ce%b1%cf%86%ce%b9%ce%ba%cf%8c-%ce%b1%cf%80%ce%bf%cf%84%cf%8d%cf%80%cf%89%ce%bc%ce%b1\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u0391\u03c1\u03c7\u03b9\u03ba\u03ae","item":"https:\/\/alysidakoinopoihsewn.blogchains.org\/en\/"},{"@type":"ListItem","position":2,"name":"Cryptographic Hash"}]},{"@type":"WebSite","@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#website","url":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/","name":"alysidakoinopoihsewn","description":"Sapere aude","publisher":{"@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"el"},{"@type":"Organization","@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#organization","name":"Blogchains Organization","url":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/","logo":{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#\/schema\/logo\/image\/","url":"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2020\/04\/Untitled-1.png","contentUrl":"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2020\/04\/Untitled-1.png","width":1112,"height":352,"caption":"Blogchains Organization"},"image":{"@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/BlockchainGreece","https:\/\/x.com\/BlockchainGreek","https:\/\/www.instagram.com\/blockchaingreece\/","https:\/\/www.youtube.com\/channel\/UCsk4qga_4aI4gOSEVUlGo6A?view_as=subscriber"]},{"@type":"Person","@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#\/schema\/person\/cc944a4852e1c3ecc66808a9c4298cc1","name":"fragagou","image":{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/4dd2afb72297bf5b4ee0572193bb18b1?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/4dd2afb72297bf5b4ee0572193bb18b1?s=96&d=mm&r=g","caption":"fragagou"},"sameAs":["https:\/\/blogchains.org"],"url":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/author\/fragagou\/"}]}},"jetpack_featured_media_url":"https:\/\/alysidakoinopoihsewn.blogchains.org\/wp-content\/uploads\/sites\/4\/2018\/11\/fingerprintwedding-ring-with-love.jpg","jetpack_sharing_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/posts\/733"}],"collection":[{"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/comments?post=733"}],"version-history":[{"count":0,"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/posts\/733\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/media\/777"}],"wp:attachment":[{"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/media?parent=733"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/categories?post=733"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/tags?post=733"},{"taxonomy":"watson-category","embeddable":true,"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/watson-category?post=733"},{"taxonomy":"watson-keyword","embeddable":true,"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/watson-keyword?post=733"},{"taxonomy":"watson-concept","embeddable":true,"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/watson-concept?post=733"},{"taxonomy":"watson-entity","embeddable":true,"href":"https:\/\/alysidakoinopoihsewn.blogchains.org\/el\/wp-json\/wp\/v2\/watson-entity?post=733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}