Viewing a response to: @musing-threads/f3ex6ea3q
<a href="https://musing.io/q/divine-sound/f3x6qs5kq"><b>View this question on Musing.io</b></a>
| author | divine-sound |
|---|---|
| permlink | f3x6qs5kq |
| category | musing-threads |
| json_metadata | "{"app":"musing/1.1","appTags":["blockchain","question"],"appCategory":"blockchain","appTitle":"What is Homomorphic Encryption?","appBody":"","appDepth":1,"musingAppId":"aU2p3C3a8N","musingAppVersion":"1.1","musingPostType":"question"}" |
| created | 2018-12-01 17:33:48 |
| last_update | 2018-12-01 17:33:48 |
| depth | 1 |
| children | 2 |
| last_payout | 2018-12-08 17:33:48 |
| cashout_time | 1969-12-31 23:59:59 |
| total_payout_value | 0.585 HBD |
| curator_payout_value | 0.193 HBD |
| pending_payout_value | 0.000 HBD |
| promoted | 0.000 HBD |
| body_length | 95 |
| author_reputation | 17,559,848,083,334 |
| root_title | "Musing Posts" |
| beneficiaries | [] |
| max_accepted_payout | 1,000,000.000 HBD |
| percent_hbd | 10,000 |
| post_id | 76,206,497 |
| net_rshares | 1,268,600,754,460 |
| author_curate_reward | "" |
| voter | weight | wgt% | rshares | pct | time |
|---|---|---|---|---|---|
| fbook | 0 | 290,571,435 | 4.03% | ||
| musing | 0 | 1,268,310,183,025 | 3% |
<a href="https://musing.io/q/divine-sound/f3x6qs5kq">View this answer on Musing.io</a>
| author | kouba01 |
|---|---|
| permlink | f34sk653w |
| category | musing-threads |
| json_metadata | "{"app":"musing/1.1","appTags":["blockchain","question"],"appCategory":"blockchain","appTitle":"What is Homomorphic Encryption?","appBody":"<p>Imagine a hospital that sends the data of its patients to the cloud, and needs to do some calculations on it. Can not reconcile private life and calculations? Well yes, via completely homomorphic encryption!</p>\n<p>The situation:</p>\n<p>To understand the idea, we take M the set of possible messages, such as words, numbers. For example, \"I will go all the way\", \"patient voltage\", \"14\" and \"7\" are valid messages. If we use an encryption solution, we have two primitives D and C, to decrypt and encrypt. Imagine now a database whose structure is known but where the records are encrypted. We would like to calculate the average of the high blood pressure of patients. A priori, nothing very rocket, it would probably be something like: select avg (TENSION_HAUTE) from TENSION. But to achieve it, you must decipher each line, so put in clear personal data. And that is MAL. If one had to formulate a waking dream, one would like to calculate directly on the figures, and that the result is the right one. In our example above, one would like to find an operation OP such that if one takes OP of all the TENSION_HAUTE encrypted, and that one decrypts it, one has well avg (TENSION_HAUTE).</p>\n<p>Homomorphic encryption is the solution: The idea of ​​homomorphic encryption is simple: if we want to do an operation on the data in the clear, we have an equivalent operation (not always the same) on the encrypted data which gives the same result as if we had deciphered, calculated the first operation and re-encrypted. Formally, for an op operation, there exists an operation on the encrypted data, say OP, such that for any message m, OP (C (m)) = C (op (m)), hence D (OP (C) (m)) = D (C (op (m)) = op (m)</p>","appDepth":2,"appParentPermlink":"f3x6qs5kq","appParentAuthor":"divine-sound","musingAppId":"aU2p3C3a8N","musingAppVersion":"1.1","musingPostType":"answer"}" |
| created | 2018-12-01 21:44:21 |
| last_update | 2018-12-01 21:44:21 |
| depth | 2 |
| children | 0 |
| last_payout | 2018-12-08 21:44:21 |
| cashout_time | 1969-12-31 23:59:59 |
| total_payout_value | 0.000 HBD |
| curator_payout_value | 0.000 HBD |
| pending_payout_value | 0.000 HBD |
| promoted | 0.000 HBD |
| body_length | 86 |
| author_reputation | 40,349,470,265,666 |
| root_title | "Musing Posts" |
| beneficiaries | [] |
| max_accepted_payout | 1,000,000.000 HBD |
| percent_hbd | 10,000 |
| post_id | 76,214,689 |
| net_rshares | 14,104,463,679 |
| author_curate_reward | "" |
| voter | weight | wgt% | rshares | pct | time |
|---|---|---|---|---|---|
| funtraveller | 0 | 10,174,376,318 | 1% | ||
| fbook | 0 | 290,737,522 | 4.03% | ||
| linco | 0 | 2,895,731,599 | 12% | ||
| mixr | 0 | 743,618,240 | 8% |
<a href="https://musing.io/q/divine-sound/f3x6qs5kq">View this answer on Musing.io</a>
| author | shivohum2015 |
|---|---|
| permlink | f3qlps53w |
| category | musing-threads |
| json_metadata | "{"app":"musing/1.1","appTags":["blockchain","question"],"appCategory":"blockchain","appTitle":"What is Homomorphic Encryption?","appBody":"<p>When the encrypted data can be computed with out decryption, is known as Homomorphic Encryption.</p>\n<p>Security and privacy will remain protected while computation is performed upon it and with proper decryption key only one can access the details of the transaction. The decryption keys are given to authorized parties only. Cryptography uses homomorphic encryption.</p>\n<p>Thank you and Have a great day.</p>","appDepth":2,"appParentPermlink":"f3x6qs5kq","appParentAuthor":"divine-sound","musingAppId":"aU2p3C3a8N","musingAppVersion":"1.1","musingPostType":"answer"}" |
| created | 2018-12-01 17:39:42 |
| last_update | 2018-12-01 17:39:42 |
| depth | 2 |
| children | 0 |
| last_payout | 2018-12-08 17:39:42 |
| cashout_time | 1969-12-31 23:59:59 |
| total_payout_value | 0.988 HBD |
| curator_payout_value | 0.319 HBD |
| pending_payout_value | 0.000 HBD |
| promoted | 0.000 HBD |
| body_length | 86 |
| author_reputation | 35,891,663,931,488 |
| root_title | "Musing Posts" |
| beneficiaries | [] |
| max_accepted_payout | 1,000,000.000 HBD |
| percent_hbd | 10,000 |
| post_id | 76,206,698 |
| net_rshares | 2,142,684,607,573 |
| author_curate_reward | "" |
| voter | weight | wgt% | rshares | pct | time |
|---|---|---|---|---|---|
| funtraveller | 0 | 10,235,271,805 | 1% | ||
| igram | 0 | 260,369,322 | 4.02% | ||
| reazuliqbal | 0 | 3,175,251,455 | 3% | ||
| linco | 0 | 2,888,751,279 | 12% | ||
| musing | 0 | 2,125,370,303,532 | 5% | ||
| mixr | 0 | 754,660,180 | 8% |
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